Which personal pronoun correctly completes the sentence? What is its use?

Even though the Millers knew it would erupt, Old Faithful's geyser surprised ___________ every time.

A.
they; indirect object

B.
they; direct object

C.
them; indirect object

D.
them; direct object

Question

Which personal pronoun correctly completes the sentence? What is its use? 

Even though the Millers knew it would erupt, Old Faithful's geyser surprised ___________ every time.
 
 A.
they; indirect object
 
 B.
they; direct object
 
 C.
them; indirect object
 
 D.
them; direct object

sammixboo · Answer

Hey, this will get more help if ya post this in the English section :)