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

Q: Sentence: 'some people sitting on surfboards in the water'. Find frequency of the letter 't'

A: 4
****
Q: Sentence: 'this is a close up view of a tennis player during the game'. Find frequency of the letter 't'

A: 3
****
Q: Sentence: 'the zebra is eating hay in its habitat'. Find frequency of the letter 'n'

A:
2
****