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

Q: Sentence: 'a dog has found a rather large stick for playing fetch'. Find frequency of the letter 't'

A: 3
****
Q: Sentence: 'some sheep are standing in a grassy field'. Find frequency of the letter 'n'

A: 3
****
Q: Sentence: 'a person wearing athletic shoes is laying on a bed'. Find frequency of the letter 'c'

A:
1
****