Help ASAP

Part A:
Read the sentence form the text.

It was gargantuan, seeming to be the size of a house.

What does gargantuan mean?
A. Expensive
B. Huge
C. Lively
D. Ugly

Part B:
Which word in the sentence gives the best clue to the meaning of
gargantuan?

A. it
B. seeming
C. size
D. house