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

Q: Sentence: 'a baseball player dropping his bat and starting to run'. Find frequency of the letter 'o'

A: 2
****
Q: Sentence: 'a man serving himself pizza in a wooden booth'. Find frequency of the letter 'n'

A: 4
****
Q: Sentence: 'a few stoplights that are in front of a building'. Find frequency of the letter 't'

A:
5
****