The percentage increase in the area of rectangle , if each of its side is increased by 20% is? Choose the most appropriate option: A) 30 % B) 44 % C) 50 % D) 55 % E) 60 %

Rationale: "let original length = x meters original breadth = y meters original area = xy m ^ 2 new length = 120 x / 100 new breadth = 120 y / 100 = 6 y / 5 new area = 6 x / 5 * 6 y / 5 = 36 xy / 25 m ^ 2 increase percent = 11 xy / 25 * 1 / xy * 100 = 44 % answer is b"
Answer: B