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

Q: Sentence: 'this marketplace has a lot of fresh fruit and vegetables'. Find frequency of the letter 'v'

A: 1
****
Q: Sentence: 'cars parked outside if a retail store'. Find frequency of the letter 'd'

A: 2
****
Q: Sentence: 'a bear is laying down with its paws over the rocks'. Find frequency of the letter 'r'

A:
3
****