Use an Associative Property to Complete the Statement $9 \cdot ( \mathrm { yz } ) =$

Multiple Choice

Use an associative property to complete the statement.
- $9 \cdot ( \mathrm { yz } ) =$

A) $9 \cdot ( \mathrm { zy } )$
B) $( y z ) \cdot 9$
C) $( 9 \mathrm { y } ) \cdot \mathrm { z }$
D) $9 + ( y z )$