If the sides of a cube are in the ratio 4:3. What is the ratio of their diagonals?	Select.
A) 4 : 3  B) 4 : 8  C) 4 : 1  D) 4 : 2  E) 4 : 7

Rationale: "a 1 : a 2 = 4 : 3 d 1 : d 2 = 4 : 3 answer : a"
Answer: A