For the Pair of Functions, Perform the Indicated Operation $f ( x ) = \sqrt { 2 x + 5 } , g ( x ) = \sqrt { 25 x - 16 } \quad$

Multiple Choice

For the pair of functions, perform the indicated operation.
- $f ( x ) = \sqrt { 2 x + 5 } , g ( x ) = \sqrt { 25 x - 16 } \quad$ Find $( f \cdot g ) ( x )$

A) $( 2 x + 5 ) ( 5 x - 4 )$
B) $( \sqrt { 2 x + 5 } ) ( \sqrt { 25 x - 16 } )$
C) $( 2 x + 5 ) ( 25 x - 16 )$
D) $( 5 x - 4 ) ( \sqrt { 2 x + 5 } )$