Why? whats wrong do you need something?
The correct answer would be B. Adjective.
A participial phrase would appear to be a verb but it functions as an adjective in a sentence. It describes a noun. It consists of a present participle, past participle, or any modifiers and objects.
The top 3 lines that start with the words:
There,
As, and
They
~ A. precluded
Precluded means to prevent from happening; make impossible.
Answer:
When a person encounters a threat they may experience fear. Fear has been associated with heightened arousal, negative, or aversive subjective experience, and a recognizable facial expression including widened eyes and an open mouth. Research has indicated that fearful stimuli enhance visual perception.