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

Q: Sentence: 'a plate of food, with broccoli and nuts'. Find frequency of the letter 'b'

A: 1
****
Q: Sentence: 'bathroom scene with a black cat going behind the door'. Find frequency of the letter 'e'

A: 4
****
Q: Sentence: 'two slices of pizza sitting on a plate next to a fork'. Find frequency of the letter 'a'

A:
4
****