Find the Exact Value of the Expression $\cos 60 ^ { \circ } + \tan 60 ^ { \circ }$

Multiple Choice

Find the exact value of the expression. Do not use a calculator.
- $\cos 60 ^ { \circ } + \tan 60 ^ { \circ }$

A) $2 \sqrt { 3 }$
B) $\frac { 1 + \sqrt { 3 } } { 2 }$
C) $\frac { 3 \sqrt { 3 } } { 2 }$
D) $\frac { 1 + 2 \sqrt { 3 } } { 2 }$