Which of the following is a complex sentence?

a. i would like to visit the kinshasa, but i understand the city is unsafe for foreigners.
b. check out the editorial page in today's paper and you'll notice the piece by george will.
c. i simply cannot make heads or tails of rap lyrics, but i suppose i'm just too old to understand them.
d. as jake was reading the email from june yet again, the flight attendant coughed gently to get his attention.

Choose the pronoun that can replace the underlined word(s) in each sentence. mr. ruiz gave the students some homework.answer "them" the check arrived in the mail today.choose the pronoun that can replace the underlined word(s) in each sentence. mr. ruiz gave the students some homework. answer "them" the check arrived in the mail today."it" devon is saving money so that devon can buy a new video game."he" everyone is excited that anyone’s name could be drawn in the raffle. "his or her"