Read the following paragraph carefully and select the best topic sentence from the four possible answers that follow the paragraph.
We can't and wouldn't want to live like vegetables, without feeling or responsiveness. You may get “steamed up” over an important or interesting job and, as a result, be able to handle the work more effectively. Pleasurable emotions involving stress and tension can be exhilarating (令人兴奋的). You may get excited and tense while watching a tennis match or a football game. This type of tension can pep you up and then produce healthy relaxation.
Topic sentence: ____
A
Normal emotional stress is useful in many ways.
B
Tension is good for one's work.
C
We can control our emotions in different situations.
D
Stress and tension can increase job efficiency through producing relaxation.
