Question

Which sentence is punctuated correctly?

The grinding, groaning, and screeching sounds coming from the car’s brakes let us know it was time to visit the mechanic.
The grinding, groaning, and, screeching sounds coming from the car’s brakes let us know it was time to visit the mechanic.
The grinding, groaning, and screeching, sounds coming from the car’s brakes let us know it was time to visit the mechanic.
The grinding, groaning and, screeching sounds coming from the car’s brakes let us know it was time to visit the mechanic.

Answer 1

The grinding, groaning, and screeching sounds coming from the car’s brakes let us know it was time to visit the mechanic. is the right answer

Step-by-step explanation:

Answer 2

The first sentence is punctuated correctly

Step-by-step explanation:

The grinding, groaning, and screeching sounds coming from the car’s brakes let us know it was time to visit the mechanic.

When listing three things in a sentence, there are commas after each thing, but when it comes to the last item, there should be the word “and” before the item. After that the sentence continues. This is called the Oxford Comma.