What is the ratio between perimeters of two squares one having 4 times the diagonal then the other?  Choose the correct choice.
A) 3 : 8	B) 3 : 6	C) 3 : 7	D) 4 : 1	E) 3 : 3

Rationale: "d = 4 d d = d a √ 2 = 4 d a √ 2 = d a = 4 d / √ 2 a = d / √ 2 = > 4 : 1 answer : d"
Answer: D