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

Q: Sentence: 'an commercial airline airplane flies above the clouds'. Find frequency of the letter 'n'

A: 3
****
Q: Sentence: 'a white bowl filled with peeled orange slices'. Find frequency of the letter 's'

A: 2
****
Q: Sentence: 'a man that is on top of a skatebord'. Find frequency of the letter 'k'

A:
1
****