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

Q: Sentence: 'a double decker bus with a lot of people on board'. Find frequency of the letter 'l'

A: 3
****
Q: Sentence: 'two pepperoni pizzas and a cup on a counter'. Find frequency of the letter 'u'

A: 2
****
Q: Sentence: 'a baseball player standing in the outfield in front of the fence with a sign on it'. Find frequency of the letter 't'

A:
7
****