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

Q: Sentence: 'many different species of sheep in display at a museum'. Find frequency of the letter 'h'

A: 1
****
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: 'a little dog on a table while a dog groomer cuts its fur'. Find frequency of the letter 'r'

A:
3
****