Which sentence contains an introductory clause?

A. With one final streak of light, the last of the shooting stars disappeared.
B. As the shower continued to escalate, dozens of meteors arched across the sky.
C. My mom and I, along with some neighbors, gazed at the star-studded show.
D. The meteors illuminated the darkness and lit up the nighttime sky.

Question

Which sentence contains an introductory clause?
 	
	A. With one final streak of light, the last of the shooting stars disappeared.
	B. As the shower continued to escalate, dozens of meteors arched across the sky.
	C. My mom and I, along with some neighbors, gazed at the star-studded show.
	D. The meteors illuminated the darkness and lit up the nighttime sky.

micahm · Answer

b

elise_a18 · Answer

why? -_-

micahm · Answer

because  Introductory clauses are dependent clauses that provide background

timaashorty · Answer

He's right ; it is B. 

Introductory clause usually start with an adverb or conjunctions such as: although, as, if etc