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

Q: Sentence: 'a man hits a tennis ball with a racket on the court'. Find frequency of the letter 'c'

A: 2
****
Q: Sentence: 'two women standing next to each other holding tennis rackets'. Find frequency of the letter 't'

A: 7
****
Q: Sentence: 'a bunch of red motorcycles parked near a beach'. Find frequency of the letter 'd'

A:
2
****