Fill in the blank (_) in the following sentence from the following choices.
Sentence: A lot more people lined up to drive the go-kart than the truck, as _ looked intimidating .

Choice 1: A lot more people lined up to drive the go-kart than the truck, as go-kart looked intimidating .
Choice 2: A lot more people lined up to drive the go-kart than the truck, as truck looked intimidating .
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
2.