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

Q: Sentence: 'group of cars on the road with the sun setting behind it'. Find frequency of the letter 'd'

A: 2
****
Q: Sentence: 'a yellow fire hydrant in the forefront of a roadway'. Find frequency of the letter 'r'

A: 5
****
Q: Sentence: 'a giraffe is standing near a tall tree'. Find frequency of the letter 'r'

A:
3
****