For this case we have to if Sylvia shared the whole strawberry package among the three friends we have:
s: Variable that represents the amount of strawberries in the package
This is:

Solving we have:

Thus, there were 24 strawberries in the package.
Answer:
Option A:

Option D: The variable, s, is equal to the number of strawberries that were in the package.
Option E: There are 24 strawberries in the package.