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

Sentence: 'hotel towels with sunglasses perched and hotel business cards and catalog'. Find frequency of the letter 'o'
4

Sentence: 'a white toilet sitting next to a toilet paper roller'. Find frequency of the letter 'o'
4

Sentence: 'there are bananas in the blender in the kitchen'. Find frequency of the letter 't'
4