**Correct option is (D) 14, 16, 18**

Let three consecutive even numbers are x - 2, x & x+2.

\(\therefore\) Their mean \(=\frac{(x-2)+x+(x+2)}3\)

\(=\frac{3x}3\) = x

But given that mean of three consecutive even numbers is 16.

\(\therefore\) x = 16

Thus, required numbers are 14, 16, 18.