Question 17: Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions: All nations may have to make fundamental changes in their economic, political and technological institutions if they are to preserve the environment.

Change politics to politics.

Because according to the law of parallelism, it is wrong to use the word politics next to the adjectives economic, and technological, so it must be changed to the adjective political.

All countries may have to make radical changes in economic academies,

politics, technology if they want to protect the environment.