After reading mr. j. brown's letter, dated august 15, i feel compelled to write and let your readers know how i feel about raising the driving age from 16 to 18. teenagers should not be allowed to drive until they are 18. only high school graduates should be given a driver's license, and only after successfully completing a driver's education class during their senior year of high school.

right now, 15-year-olds can get a practice permit and try for their license at 16. this is too young. eighteen is a better age. at 18, people are more mature and better able to make mature decisions. not all 18-year-olds are mature, but the majority of them are. at least we are more mature than 15-year-olds. est supporting point to defend the author's position
which sentence provides the best supporting point to defend the author's position?

a teenagers should not be allowed to drive until they are 18.
b) only high school graduates should be given a driver's license.
c) some younger teenagers are perfectly mature and responsible, of course.
d) at 18, people are more mature and better able to make mature decisions