Which of the following sentences is punctuated correctly?

AWere you aware, that Daylight Savings Time begins tomorrow?
BWhat most people do, is change their clicks in the morning, not the night before.
CHow you choose to wake up tomorrow, is up to you.
DI hope that you do not oversleep, or we will be late for school.

Identify the choice that best describes the sentences.

Verified Answer :

It will be answer 'D' because it is two sentences combined by a conjunction. that is called a compound sentence. In this case a comma is needed