Which system of equations can be used to find the ​exponential​ function that passes through the points

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Which system of equations can be used to find the ​exponential​ function that passes through the points

Which system of equations can be used to find the exponential function that passes through the points left parenthesis 2 comma space bevelled 25 over 4 right parenthesis) and left parenthesis bevelled fraction numerator 4 comma space 625 over denominator 4 end fraction right parenthesis?

A. 2=a(254)b4=a(6254)b

B. 254=ab26254=ab4

C. 254=a(2)b6254=a(4)b

D. 2=ab2544=ab6254