Write in exponent form: 2x⋅2x⋅2x⋅2x
A. Because these are like terms, we just add the coefficients to get 8x
B. Because when you are multiplying with exponents, you would add to get 8⋅x^4
C. Because we only worry about the exponent on the variable, 2⋅x^4
D. Because there are 4 factors of 2 and 4 factors of x, 2^4⋅x4