729 : 9 :: 64 : ?

A) 2

B) 4

C) 6

D) 8

Correct answer:
B) 4

Description for Correct answer:
\( \large\sqrt[3]{729} = \sqrt[3]{9 X 9 X 9} = 9 \)
\( \large\sqrt[3]{64} = \sqrt[3]{4 X 4 X 4} = 4 \)


Please provide the error details in above question