Describe and correct the error a student made in writing the exponential function O A. The student made an error by multiplying incorrectly. The final answer should be f(x) =

OB. The student made an error by interchanging the exponent and the base. The final answer should be f(x)=

OC. The student made an error by applying the exponent to the product of a and b instead of just b. The final answer should be f(x) =

OD. The student made an error with substitution. The starting value should be substituted for b and the constant ratio for a. The final answer should be f(x) =​