Answer:
Option D is correct.
Explanation:
We are given,
Height of the candles, h = 18 inches
Radius of the candles, r = 5 inches
Candles are in shape of cylinder.
We have to find correct representation of volume of candle.
Volume of cylinder =

Volume of candle = ]tex]\pi (5)^2\times18[/tex]
Therefore, Option D is correct.