Let $$X = \{1, 2, 3, 4, 5\}$$. The number of different ordered pairs $$(Y, Z)$$ that can be formed such that $$Y \subseteq X$$, $$Z \subseteq X$$ and $$Y \cap Z$$ is empty, is

A

$$5^2$$

B

$$3^5$$

C

$$2^5$$

D

$$5^3$$