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

Q: Sentence: 'a row of vintage cars in a grassy field'. Find frequency of the letter 'v'

A: 1
****
Q: Sentence: 'a couple of people that are on a baseball field'. Find frequency of the letter 'c'

A: 1
****
Q: Sentence: 'a frying pan with eggs on the stove'. Find frequency of the letter 'o'

A:
2
****