Decide Whether the Equation Is an Identity, a Conditional Equation $$20 x + 15 = 5 ( 2 x + 11 )$$

Multiple Choice

Decide whether the equation is an identity, a conditional equation, or a contradiction. Give the solution set.
- $$20 x + 15 = 5 ( 2 x + 11 )$$

A) Conditional; $\{ 4 \}$
B) Contradiction; $\varnothing$
C) Conditional; $\{ - 7 \}$
D) Identity; \{all real numbers $\}$