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

Q: Sentence: 'a double decker transit bus parks by a blue on the side of the street in front of a brick building in the city'. Find frequency of the letter 't'

A: 9
****
Q: Sentence: 'a bathroom that has it's lights turned on'. Find frequency of the letter 'h'

A: 4
****
Q: Sentence: 'a man speaking to a woman holding a tea cup'. Find frequency of the letter 'k'

A:
1
****