$$\text { Find the derivative of the function } f ( t ) = 15 t ^ { 3 } + 6 \sec ( t ) \text {. }$$

Multiple Choice

$$\text { Find the derivative of the function } f ( t ) = 15 t ^ { 3 } + 6 \sec ( t ) \text {. }$$

A) $f ^ { t} ( t ) = 45 t ^ { 2 } + 6 \sec ( t ) \tan ( t )$
B) $f ^ { t } ( t ) = 3 t ^ { 2 } + 6 \sec ^ { 2 } ( t )$
C) $f ^ {t} ( t ) = 45 t ^ { 2 } + 6 \tan ( t )$
D) $f ^ { t } ( t ) = 3 t ^ { 2 } + 6 \sec ( t ) \tan ( t )$
E) $f ^ { t} ( t ) = 45 t ^ { 2 } - 6 \sec ( t ) \tan ( t )$