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

Q: Sentence: 'a small doughnut held in a persons hand'. Find frequency of the letter 'n'

A: 4
****
Q: Sentence: 'an airplane is being towed away from the jet bridge'. Find frequency of the letter 's'

A: 1
****
Q: Sentence: 'a dog laying on the back of a boat in the water'. Find frequency of the letter 't'

A:
4
****