A student has a exponential function problem, the starting value = 6 the constant ratio = 1/3 and they write F(x) = 6(1/3)^x F(x) = 2^x Describe and correct the error a student made in writing the exponential function. Select the correct answer below​ and, if​ necessary, fill in the answer box to complete your choice. ​(Use integers or fractions for any numbers in the​ expression.) A. The student made an error by interchanging the exponent and the base. The final answer should be ​f(x) = B. 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) = C. The student made an error by multiplying incorrectly. The final answer should be ​f(x) = D. 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) =