After Discussing the First Main Point in His Speech on Sustainable

Multiple Choice

After discussing the first main point in his speech on sustainable agriculture, Rasheed said:
So far, I have explained the problems associated with our present agricultural system. Next, I will explain what sustainable agriculture is and why it is superior to the current system.
According to your textbook, what type oconnective did Rasheed use?

A) bridge
B) internal summary
C) transition
D) all of the above
E) b and c only