Use Definite Integrals and Fundamental Theorem of Calculus to Find $f ( x ) = x ^ { 2 }$

Multiple Choice

Use definite integrals and Fundamental Theorem of Calculus to find the exact area of the region between the graphs of $f ( x ) = x ^ { 2 }$ and $g ( x ) = x + 6$

A) 21
B) 123/6
C) 125/6
D) 124/6