If 12 men do a work in 80 days, in how many days will 20 men do it?	Choose the correct option:
A) 18 days
B) 38 days
C) 42 days
D) 48 days
E) 44 days

Rationale: "12 * 80 = 20 * x x = 48 days answer : d"
Answer: D