The answer is B. A term is a group of numbers and/or variables connected by multiplication. A and b are both variables and it is an expression because there is no equal sign.
If 3/3 would be all the students voting and 216 is 2/3 than divide 216 and get 108. 108 is 1/3 so 108+108 is 2/3 and 108+108+108 is 3/3 I believe the answer is 324