Question

Which is a complex sentence?

Answer 1

I think the correct answer is A

Answer 2

It’s not A, it’s B. A complex sentence contains an independent clause and a subordinate clause. In B, the independent clause (that can make sense on its own) is ‘a trip to Las Vegas is unforgettable’ and the subordinate clause (which can’t make sense on it’s own) is ‘although it will set you back at least a thousand dollars’. Hope this helps!