Solve Using the Multiplication Principle $3 n \geq 9$ A) $\{n \mid n \geq 3\}$

Solve using the multiplication principle.
- $3 n \geq 9$

A) $\{n \mid n \geq 3\}$
B) $\{n \mid n \leq 3\}$
C) $\{n \mid n>3\}$
D) $\{n \mid n<3\}$