Astudent is trying to solve the following problem by selecting the tile shown. which of the following statements is true?

a. the student chose the wrong tile to solve the problem..
b. the student chose the correct tile, but needs to flip the tile to make the units cancel..
c. the student chose the correct tile, but needs to add a second tile to solve the problem..
d. there is nothing wrong. the problem is ready to be solved.