The answer is the last choice, or D.
When you summarize, you're supposed to gather the most important points and rewrite them in a shorter and more simplified fashion. The first three choices include mostly everything you should do when writing a summary. Usually when you summarize, it's for a concluding paragraph, so writing an introductory paragraph wouldn't be it.
Most wild birds feed themselves with fruit from trees, and killing insects that they hunt.
Answer:
a. While it did have access to light, the plant stored energy in the form of sugars or starch, and it was able to derive energy from the stored molecules during your vacation
Explanation:
Though the healthy philodendron is placed in the dark, it has access to light since plan can store energy in the form of sugars or starch. In dark milieu, the plan can be able to derive energy from the stored molecules of sugars or starch. Philodendron, therefore, remains healthy during the vacation even if it is kept in dark.