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

Sentence: 'a man pushing a cart full of bananas'. Find frequency of the letter 'u'
2

Sentence: 'a group of people walking down a rain soaked street with umbrellas'. Find frequency of the letter 'w'
3

Sentence: 'one large room can provide a home away from home'. Find frequency of the letter 'h'

2