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

Q: Sentence: 'a dog has found a rather large stick for playing fetch'. Find frequency of the letter 't'

A: 3
****
Q: Sentence: 'a woman sitting in front of a giant slice of cheese pizza'. Find frequency of the letter 'e'

A: 4
****
Q: Sentence: 'a old ice box standing out in a yard'. Find frequency of the letter 'o'

A:
3
****