Carol had only been in the small Texas town for a few minutes. She could not believe that she was supposed to play a concert there later in the evening. Seeing that the town had only one stoplight and very few businesses, she assumed that fewer people lived in the town than had shown up to her previous concert.
As the clock struck nine, the manager of the dancehall opened the doors and in came a deluge. Carol could not believe her eyes. It was the biggest crowd she had seen on the entire tour. When she asked where they discovered her music, they all yelled, "The Internet!"

What is the meaning of the phrase "in came a deluge"?
A.
A big crowd of people arrived.
B.
An unfortunate accident occurred.
C.
It started raining hard.
D.
The dancehall was flooded.