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

Q: Sentence: 'some giraffes moving across a big grass field'. Find frequency of the letter 'e'

A: 3
****
Q: Sentence: 'a long row of tables displaying lots of fruit'. Find frequency of the letter 'o'

A: 5
****
Q: Sentence: 'a pizza is being sliced on a cutting board'. Find frequency of the letter 't'

A:
2
****