Why do writers choose to repeat key words and phrases in their essays?

a. because they believe that varying their word choice will make the essay difficult to read
b. to emphasize and clarify a point throughout the essay
c. so they can meet the requirements of the essay

Identify the following sentence as simple, compound, complex, or compound-complex. even though most people think of africa as a desert, zimbabwe has a hot, tropical climate, so mangoes, passion fruit, pineapples, and avocados grow well there. a. compound b. simple c. complex d. compound-complex