playing a musical instrument

(1) children who learn to play a musical instrument at an early age have some of the best advantages throughout their academic and social lives. (2) oftentimes, children begin showing musical interest at six or seven years old. (3) encouraging musical interests in children at a young age can encourage the self-assurance and mental abilities of students socially and academically. (4) it is also critical to note that brain function is highly interactive in students who play musical instruments.
(5) the impact of musical training on children has been known to increase memory and improve reading skills. (6) practicing a musical instrument regularly can children learn a second language much easier. (7) the academic performance of trained musicians is also noted in higher standardized test scores and higher iqs in early adulthood. (8) additionally, music lessons teach students to think outside of their traditional alphabet and number system and teaches them read symbols and signs. (9) over time, these symbols become a cemented language that their brains learn to easily process.
(10) while music instruction in children shows clear evidence of the benefit on academic skills, it also improves and enhances social skills. (11) children who participate in music lessons learn how to work with others harmoniously through the music they create. (12) furthermore, children in these settings also learn the power of both verbal and nonverbal communication. (13) they learn how gestures and eye contact also demonstrate a clear form of communication that can be understood. (14) music students also learn the value of self-awareness by becoming comfortable performing in front of others. (15) they learn the value of their hard work and build self-confidence by challenging themselves.
(16) the benefits of learning to play a musical instrument at a young age are powerful. (17) some argue that it can be expensive to take private or group lessons, but there are options available today. (18) local libraries, community centers, and youth symphonies make learning to play a musical instrument affordable and accessible, despite income limitations. (19) they offer free or reduced-cost lessons and even provide instruments for students to take home and practice with.
(20) without a doubt, musical instruments are a clear way of grooming young children into successful adults who can show their creativity, intelligence, and wit. (21) for some children it comes naturally, while others must work hard to build the skill. (22) regardless where a child is when it comes to skill, the investment lasts a lifetime.
1
the writer connects sentences 11 and 12 with the word "furthermore." what does this transition word signal to the reader?
a.
the writer wants to emphasize the importance of verbal and nonverbal communication skills over playing music together.
b.
the writer wants to share additional information about what children who take music lessons experience.
c.
the writer wants to compare the effects of playing music together on both verbal and nonverbal communication skills.