$\text { Find } F ^ { \prime } ( x ) \text { given }$

Multiple Choice

$\text { Find } F ^ { \prime } ( x ) \text { given }$
$$F ( x ) = \int _ { x } ^ { x + 3 } ( 10 t + 1 ) d t$$

A) $F ^ { \prime } ( x ) = 1 + 10 t$
B) $F ^ { \prime } ( x ) = 1 + 10 x$
C) $F F ^ { \prime } ( x ) = 30$
D) $F F ^ { \prime } ( x ) = 48 + 30 x ^ { 2 }$
E) $F ^ { \prime } ( x ) = 48 + 30 t$