I'll give you a question, please answer with step-by-step reasoning process.
The inverse ratio of 4: 2: 1 is?\nOptions:\n(A) 2:4:8\n(B) 2:3:9\n(C) 2:3:2\n(D) 2:3:6\n(E) 2:3:1

(A)
1/4: 1/2: 1/1 = 2:4:8.

So, the final answer is (A)