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

Q: Sentence: 'a teenager witting on a futon couch holding gaming controls in both hands'. Find frequency of the letter 'c'

A: 3
****
Q: Sentence: 'an airplane is being towed away from the jet bridge'. Find frequency of the letter 's'

A: 1
****
Q: Sentence: 'a man on a snow board several feet in the air'. Find frequency of the letter 't'

A:
2
****