Which of the following is a complex sentence?
A. Sue gave Jim a new racket, and he left for the tennis courts.
B. As I expected, she showed up late.
C. Mark wanted blueberry pie and vanilla ice cream.
D. Eileen bought pants but not a new jacket.
The best answer among the following choices would be the second option B) As I expected, she showed up late because the subordinating conjunction in the sentence is ''As''