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

Q: Sentence: 'a group of tennis players on a tennis court'. Find frequency of the letter 'o'

A: 4
****
Q: Sentence: 'the child is waving a small flag as she stands near two women'. Find frequency of the letter 'g'

A: 2
****
Q: Sentence: 'a plate of food has a croissant sandwich and soup'. Find frequency of the letter 'a'

A:
7
****