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

[Q]: Sentence: 'a plastic tray that has different foods inside of it'. Find frequency of the letter 't'
[A]: 6


[Q]: Sentence: 'a baby elephant walks beside an adult elephant along a post and cable'. Find frequency of the letter 'l'
[A]: 6


[Q]: Sentence: 'a living room of a cabin-style house features furniture and some antique items'. Find frequency of the letter 't'
[A]:
5