Which section of the passage builds tension by speeding up the pace?

All was ready. The signal was given. A door beneath the royal party opened, and the lover of the princess walked into the arena. Tall, beautiful, fair, his appearance was greeted with a low hum of admiration and anxiety. Half the audience had not known so grand a youth had lived among them. No wonder the princess loved him!

The choice are:
A-All was ready. The signal was given
B-Tall, beautiful, fair, his appearance was greeted with a low hum of admiration and anxiety.
C-Half the audience had not known so grand a youth lived among them.
D-No wonder the princess loved him!