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 agricul-ture is and why it is vastly superior to the current system. According to your textbook, what type of connective did Rasheed use?
a. bridge
b. internal summary
c. transition
d. all of the above
e. b and c only

C.

Explanation:

Transition can be defined as a word or phrase that helps a writer to flow freely from one idea to another. This technique helps the writer to shift smoothly from one idea to another without letting the readers or the audience being lost or distracted.

In the given paragraph, Rasheed has used the technique of transition as he moved from one idea to another without breaking the flow. After discussing sustainable development the orator has shifted to another idea of problems associated with the present agricultural system without breaking the flow.

So, the correct answer is C.