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

Q: Sentence: 'a softball player holding the bat on first base'. Find frequency of the letter 't'

A: 4
****
Q: Sentence: 'a boy that is sitting at a table with pizza'. Find frequency of the letter 's'

A: 2
****
Q: Sentence: 'a gazelle laying down in the dirt sleeping'. Find frequency of the letter 'e'

A:
5
****