Question

Which sentence has the correct punctuation?

I was very frightened, while the stranger was knocking on my door.
I was very frightened while the stranger was knocking on my door.
I was, very frightened, while the stranger was knocking on my door.
I was very frightened, while the stranger, was knocking on my door.

Answer 1

The one without a comma. "I was very frightened while the stranger was knocking on my door.