Explanation:

Let the 3 consecutive numbers be x - 1, x, and x + 1
According to the question,
(x – 1) + x + (x + 1) = (x - 1) × x × (x + 1)

⇒ 3x = x × (x² - 1)
⇒ 3x = x³ – x
⇒ x³ – 4x = 0
⇒ x (x² – 4) = 0
⇒ x = 0, 2 or -2
Therefore, there are only 3 such possibilities.
Hence, option (c) is the correct answer.