In sea urchin DNA, which is double stranded 17% of the bases were cytosine. The percentages of the other three bases expected to be present in this DNA are______.

A. G 34%, A 24.5%, T 24.5%

B. G 17%, A 16.5%, T 32.5%

C. G 17%, A 33%, T 33%

D. G 8.5%, A 50%, T 24.5%