Question

4 Muffins on each plate. There are 0 plates of lemon muffins.

Answer 1

For this case, the first thing we must do is define a variable.
 We have then:
 x: number of muffin plates
 We now write the expression that models the problem.
 We know there are 4 muffins in each dish, therefore, we have:
 $4x$
 Substituting for x = 0 we have:
 $4 (0) = 0$
 Answer:
 There are 0 lemon muffins
 d: 0

Answer 2

If there are no plates of lemon muffins then there are also no lemon muffins themselves at all. Anything multiplied by 0 will always give the result of 0.

4 * 0 = 0

Answer D.