I think the answer is (D)
My sister Gina bought a 1957 Chevy at the car auction. It was old and rusty.
or
My sister Gina bought a 1957 Chevy at the car auction; it was old and rusty.
or
My sister Gina bought a 1957 Chevy at the car auction, and it was old and rusty.
Good luck!
Basically twice means 2 in these sentence twice means more than he earn in short words he wants to say that he wants to earn more than he is earning now
for example someone is earning $500 every month so he want to earn $1000 every month
Answer:
c, challenging because why not