What is the correct answer?
4
A. W₁/W₂ = n₂(n₁ - 1)/n₁(n₂ - 1)
B. W₁/W₂ = n₁(n₂ - 1)/n₂(n₁ - 1)
C. W₁/W₂ = n₁/n₂
D. W₁/W₂ = n₂/n₁