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

[Q]: Sentence: 'eight donuts are cooked together in oil in a metal tray'. Find frequency of the letter 'h'
[A]: 2


[Q]: Sentence: 'pizza with different vegetables sitting on top of a wooden slab'. Find frequency of the letter 'o'
[A]: 5


[Q]: Sentence: 'a black and white kitchen with stainless steel appliances'. Find frequency of the letter 'h'
[A]:
3