In this task, you need to count the number of times the given letter appears in the given sentence.

Q: Sentence: 'cooked fish and green broccoli share a single white plate'. Find frequency of the letter 'c'

A: 3
****
Q: Sentence: 'a man is water skiing on a river'. Find frequency of the letter 'r'

A: 3
****
Q: Sentence: 'six surf boarders carry their boards along the beach'. Find frequency of the letter 'c'

A:
2
****