$\text { Find the second derivative of the function } f ( x ) = \frac { 3 x ^ { 2 } + 5 x - 4 } { x } \text {. }$

Multiple Choice

$\text { Find the second derivative of the function } f ( x ) = \frac { 3 x ^ { 2 } + 5 x - 4 } { x } \text {. }$

A) $f ^ {tt } ( s ) = - \frac { 8 } { x ^ { 3 } }$
B) $f ^ { tt } ( s ) = \frac { 8 } { x ^ { 3 } }$
C) $f ^ {tt} ( s ) = - \frac { x + 8 } { x ^ { 3 } }$
D) $f ^ { tt } ( s ) = \frac { 4 } { x ^ { 3 } }$
E) $f ^ { tt } ( s ) = - \frac { 8 } { x ^ { 2 } }$