Use the Cofunction Identities to Find an Angle $$\theta$$ That Makes the Statement True

Multiple Choice

Use the cofunction identities to find an angle $$\theta$$ that makes the statement true.
- $$\cot \left( 2 \theta - 20 ^ { \circ } \right) = \tan \left( \theta - 10 ^ { \circ } \right)$$

A) $\theta = 40 ^ { \circ }$
B) $\theta = 10 ^ { \circ }$
C) $\theta = \frac { 17 ^ { \circ } } { 7 }$
D) $\theta = \frac { 83 ^ { \circ } } { 7 }$