What are the end behaviors of $f(x)=-2(x-2)^{5}$ ? A. Both ends go down. B. Both ends go up. C. The left end goes down; the right end goes up. D. The left end goes up; the right end goes down.

Step 1 ：The end behavior of a function is determined by the degree and the leading coefficient of the polynomial. The degree of the polynomial is 5, which is odd, and the leading coefficient is -2, which is negative.

Step 2 ：For polynomials with an odd degree and a negative leading coefficient, the left end of the graph goes up and the right end of the graph goes down.

Step 3 ：So, the final answer is D. The left end goes up; the right end goes down.