Smartphone ownership among teens is certainly on the rise. yet there is reason for caution. teens are showing signs of smartphone addiction. a survey by textplus found that half of teens "couldn't live without their mobile devices for a week, while 36 percent said they weren't able to go 10 minutes without checking their phones." all this time on the devices creates more chances for problems. smartphones and social media have been linked to serious cases of cyber bullying. some students have been hurt or worse. a school superintendent in california, j. thomas morton, sent a letter to parents. he asked them to monitor their teens' use of all electronic devices, as cyber bullying incidents are on the rise.
which of the following is true about this argument excerpt?
it is respectful in tone to the audience and supports its claim with specific, credible evidence.
it contains specific, credible evidence but uses a disrespectful tone that should be edited.
it fails to support its claim with specific, credible evidence and uses a disrespectful tone.
it uses a respectful tone but needs specific, credible evidence to support the claim.

Read sentence 13 from the draft. some plants retain a great deal of their foliage through much of the spring and summer, but the leaves do not retain their green color for long. which detail would be best to add after sentence 13 to develop the topic? a. since the green color of the leaves that are bright and abundant during the warmer months will disappear by the time it is fall, it is important that the leaves are trimmed and kept freshly cut so that they will last for as long as possible. b. while the temperature outside may dictate when the fall colors of leaves appear, it is only one of many environmental factors that play a part in the changing of colors from green leaves to fall-colored leaves during the cooler months. c. if people want to enjoy the green color of leaves longer, trees should be planted where the environment is warmer and the days longer because chlorophyll in the leaves can only be manufactured and replaced with sunlight and warmth. d. the green chlorophyll normally masks the fall-colored pigments during the warmer months, but as sunlight becomes less abundant and trees become frozen, the fall colors of leaves become more visible as chlorophyll disappears.