Find the Mass of the Lamina That Occupies the Region $D = \left\{ ( x , y ) \mid 0 \leq x \leq 1 , x ^ { 2 } \leq y \leq 1 \right\}$

Multiple Choice

Find the mass of the lamina that occupies the region $D = \left\{ ( x , y ) \mid 0 \leq x \leq 1 , x ^ { 2 } \leq y \leq 1 \right\}$ and has density function p(x, y) = x + y.

A) 0.35
B) 0.40
C) 0.45
D) 0.50
E) 0.55
F) 0.60
G) 0.65
H) 0.70