Find the future values of the following ordinary annuities.

A$.$ FV of $$700$ paid each $6$ months for $5$ years at a nominal rate of $7\%$ compounded semiannually. Do not round intermediate calculations. Round your answer to the nearest cent.

B$.$ FV of $$350$ paid each $3$ months for $5$ years at a nominal rate of $7\%$ compounded quarterly. Do not round intermediate calculations. Round your answer to the nearest cent.

C$.$ These annuities receive the same amount of cash during the $5$ year period and earn intererst at the same nominal rate, yet the annuity in part b ends up larger than the one in part a$.$ Why does this occur?