Many calculators have a reciprocal key \dfrac{1}{\mathrm{x}} that replaces the current number displayed with its reciprocal. For example, if the display is 4 and the \dfrac{1}{x} key is depressed, then the display becomes \square .25. If 32 is currently displayed, what is the fewest number of times you must depress the \left[\dfrac{1}{x}\right] key so the display again reads 32 ?
Answer Choices
A. 1
B. 2
C. 3
D. 4
E. 5