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

Q: Sentence: 'a bathroom that has it's lights turned on'. Find frequency of the letter 'h'

A: 4
****
Q: Sentence: 'a group of cows that are standing in the grass'. Find frequency of the letter 'g'

A: 3
****
Q: Sentence: 'a person riding skis on a snowy slope'. Find frequency of the letter 'e'

A:
2
****