Its B the teacher appeared angry when Dave forgot his homework.
1. The property of crime victims are put on display.
2.The level of birth defects from these drugs are not yet known.
3.The number of people with serious chronic conditions like diabetes or cancer are increasing.
The sentence with a clause used as a modifier to the verb is We left the performance early because we were tired.
The clause <em>because we were tired </em>serves as the modifier for the verb <em>left, </em>it describes it, and gives the reason why they left early.
