Which sentence is written correctly?
a) i wrote a letter (to the mayor) asking for increased funding for our schools.
b) earning a spot on the football team (which has won the championship the last two years) is quite an accomplishment. c) martin a safe driver was able to pass his driving test on the first attempt.
d) a new bakery, and coffee shop, will open on campus next fall in time for the start of the new fall semester.

The correct answer is option letter B (Earning a spot on the football team (which has won the championship the last two years) is quite an accomplishment). This is the only sentence that shows proper punctuation. In this option, a relative clause adding extra information has been placed between parentheses, since that information is not really necessary. The rest of the options do not use punctuation correctly. Option letter A is not correct, since the indirect object “to the mayor” is unnecessarily placed between parentheses. Option letter C is not correct, since two commas are needed to make an apposition (Martin, a safe driver, was…). Option letter D is not correct because the comma after “bakery” is used incorrectly.