The salary of a worker is first increased by 20% and afterwards reduced by 20%. What is the net change in the worker's salary?  Pick one:
A) 4 % decrease  B) 8 % decrease  C) 4 % increase  D) 8 % increase  E) no change

Rationale: "let x be the original salary . the final salary is 0.8 ( 1.2 x ) = 0.96 x the answer is a ."
Answer: A