20. The Principal colour of Lord’s incarnation in Satya-yuga is _______; in Treta-yuga, it is ______; in Dvapara-yuga, it is_______ and in Kali-yuga, it is _______.

a) White, Red, Yellow, Black.
b) Black, Red, White, Yellow.
c) Red, White, Black, Yellow.
d) White, Red, Black, Yellow.

The correct answer is
d) White, Red, Black, Yellow.