Which of the following details would best support the message, Learning another language makes children smarter? A. Children who speak two languages are better at solving some kinds of mental puzzles.
B. Learning languages is hard and takes a very long time to do.
C. Children are better at learning languages than adults are.
D. Many children in the U. S. today are bilingual.

Hope its correct!

some attention getter quotes to support your thesis regarding brain work could be the following: :

a. storage capacity of your brain is virtually unlimited.

b. your brain produces sufficient electricity to light-up a small bulb.

c. different brain circuits are involved with reading aloud or silently.

d. your brain by itself does not feel pain.

e. reading allows your brain to download info directly.

f. brains of two musicians performing together can synchronize.