Which theme is best expressed in "the girft of the magi"?

Can someone me answer this english question

Analyzing relationships how was the scientist work similar to the work of the keene high school students you read about in this section

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