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

Q: Sentence: 'a man pushing a cart full of bananas'. Find frequency of the letter 'u'

A: 2
****
Q: Sentence: 'pedestrians pass by a stop sign, some holding surfboards'. Find frequency of the letter 'n'

A: 3
****
Q: Sentence: 'an old woodie parked on top of a lush green field'. Find frequency of the letter 'p'

A:
2
****