Find the Exact Value Under the Given Conditions $\sin \alpha = \frac { 7 } { 25 } , 0 < \alpha < \frac { \pi } { 2 } ; \quad \cos \beta = \frac { 20 } { 29 } , 0 < \beta < \frac { \pi } { 2 } \quad$

Multiple Choice

Find the exact value under the given conditions.
- $\sin \alpha = \frac { 7 } { 25 } , 0 < \alpha < \frac { \pi } { 2 } ; \quad \cos \beta = \frac { 20 } { 29 } , 0 < \beta < \frac { \pi } { 2 } \quad$ Find $\cos ( \alpha + \beta )$ .

A) $\frac { 333 } { 725 }$
B) $\frac { 644 } { 725 }$
C) $- \frac { 364 } { 725 }$
D) $\frac { 627 } { 725 }$