Consider the following statements in the light of Plato's metaphysics and select the correct answer:
1. What is truly real is objects that we encounter in sensory experience.
2. What is truly real is forms that can only be grasped intellectually.
3. Forms are eternal and changing.

A. Only 1 is true

B. Only 1 and 3 are true

C. Only 2 is true

D. Only 2 and 3 are true

Answer: Option C