Select the INCORRECTLY spelt word.

Correct option is B

The incorrectly spelt word is (b) Beneth. The correct spelling is "Beneath".
Meaning of the words:
 Belief: Trust, faith, or confidence in someone or something.
 Beneath: At a lower level or layer than something.
 Belly: The front part of the human body below the chest, containing the stomach and bowels.
 Bellow: To shout or roar loudly, typically in a deep voice.