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

Q: Sentence: 'group of snowboarders on a snowy trail overlooking a mountain'. Find frequency of the letter 'r'

A: 5
****
Q: Sentence: 'the interior of a living and dining room'. Find frequency of the letter 'i'

A: 6
****
Q: Sentence: 'they are pulling a white car out of the water while a white yacht sits in the background'. Find frequency of the letter 't'

A:
9
****