Solve the Radical Equation, If Possible $$\sqrt { 3 a - 7 } = 2 - \sqrt { 3 a + 1 }$$

Solve the radical equation, if possible. $$\sqrt { 3 a - 7 } = 2 - \sqrt { 3 a + 1 }$$

A) $\left\{ \frac { 10 } { 3 } \right\}$
B) $\left\{ \frac { 32 } { 3 } \right\}$
C) $\left\{ \frac { 8 } { 3 } \right\}$
D) \{ \}