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

Q: Sentence: 'a glass vase sits between two statues'. Find frequency of the letter 'o'

A: 1
****
Q: Sentence: 'a softball player holding the bat on first base'. Find frequency of the letter 't'

A: 4
****
Q: Sentence: 'a sign in front of the airplane warns that tobacco is not allowed in the area'. Find frequency of the letter 'n'

A:
7
****