Decide Whether the Equation Is Conditional, an Identity, or a Contradiction

Decide whether the equation is conditional, an identity, or a contradiction. Give the solution set.
- $4(4 g+17) -16 g-68=0$

A) Conditional; $\{4\}$
B) Identity; {all real numbers}
C) Conditional; $\{0\}$
D) Contradiction; $\varnothing$