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

Q: Sentence: 'a half eaten doughnut in a persons hand'. Find frequency of the letter 'h'

A: 3
****
Q: Sentence: 'a dilapidated bench in a park under a tree'. Find frequency of the letter 'p'

A: 2
****
Q: Sentence: 'two bridges across a river, one bridge only goes half way'. Find frequency of the letter 'i'

A:
3
****