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

Q: Sentence: 'several zebras  and a giraffe in an enclosure'. Find frequency of the letter 's'

A: 3
****
Q: Sentence: 'a boy that is sitting at a table with pizza'. Find frequency of the letter 's'

A: 2
****
Q: Sentence: 'there are sheep grazing together in the grass'. Find frequency of the letter 'a'

A:
3
****