19. This question is based on the following paragraph.
“Sssssh, listen!” said Terry. “I can hear her coming down the hallway.” Everyone hid behind the couches or in corners. They tried to stifle their giggles and make no sound at all. There was only the sound of a key in the lock as Sheila, the birthday girl, came in for the evening.
What word gives the reader a clue that what is happening is going to be funny?
A. Giggles
B. Lock
C. Birthday
D. Hid