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

Q: Sentence: 'a small dog sits in the rear window of a car'. Find frequency of the letter 'm'

A: 1
****
Q: Sentence: 'two people holding their skies in a snowy resort'. Find frequency of the letter 'n'

A: 3
****
Q: Sentence: 'two young zebras playing with each other in the grassy plains'. Find frequency of the letter 't'

A:
4
****