Which of the following statements about preschoolers' ability to generate and follow a plan is true?

A) Preschoolers' difficulty with appearance versus reality contributes to their poor planning skills.
B) Preschoolers cannot systematically search for a lost object even if possible locations are few.
C) When parents encourage planning in everyday activities, they help children plan more effectively.
D) Preschoolers are not yet capable of planning, even if the tasks are familiar and not too complex.

C