Riddle

What three numbers, none of which is zero, give the same result whether they're added or multiplied?

Choose an answer

A.0, 1, 2
B.2, 2, 2
C.1, 1, 1
D.One, two and three
Hint: It's a 4-word phrase with 14 letters, starting with "O".

Answer

One, two and three

Why this is the answer

The sum and the product of these three specific integers are both 6.

This riddle is filed under Hard/Difficult Riddles and rated Medium.