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

[EX Q]: Sentence: 'a man in a suit makes the first slice into a cake'. Find frequency of the letter 't'
[EX A]: 4

[EX Q]: Sentence: 'a girl laying on a bed posing for a picture'. Find frequency of the letter 'i'
[EX A]: 4

[EX Q]: Sentence: 'a bird that is sitting on a ledge'. Find frequency of the letter 'n'
[EX A]:
2