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

Q: Sentence: 'a batter, catcher and umpire waiting for the pitch and a major league baseball game'. Find frequency of the letter 'c'

A: 3
****
Q: Sentence: 'a young man with glasses on is taking a big bite'. Find frequency of the letter 's'

A: 4
****
Q: Sentence: 'an orange tree with green leaves and some brown plants'. Find frequency of the letter 'n'

A:
6
****