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

Q: Sentence: 'a bunch of green bananas is hanging on a tree'. Find frequency of the letter 'n'

A: 7
****
Q: Sentence: 'the bathroom is in need of remodel'. Find frequency of the letter 'e'

A: 5
****
Q: Sentence: 'a giraffe is in the middle of a grassland'. Find frequency of the letter 'r'

A:
2
****