Express the Sum or Difference as a Product $\sin 75 ^ { \circ } + \sin 15 ^ { \circ }$

Multiple Choice

Express the sum or difference as a product.
- $\sin 75 ^ { \circ } + \sin 15 ^ { \circ }$

A) $\frac { \sqrt { 6 } } { 2 }$
B) $\frac { \sqrt { 6 } } { 4 }$
C) $\frac { \sqrt { 3 } } { 2 }$
D) $- \frac { \sqrt { 6 } } { 2 }$