In which of the following sentences is there agreement between the subject and the verb? a. either mavis or cameron is responsible for answering the phone. b. the number of people who voted were surprisingly low. c. twenty years are a long time to wait. d. i think both hard work and time to play is important for each individual

depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.