Help 13 ​

P = 4864.77

r = interest rate  =  .039

n =  compoundings per year  =  2   [ twice per year ]

t = time =  2  [years] 

So we have

A  = 4864.77 [ 1 + .039/2]^(2* 2 )   = $5255.47 ⇒ "C"