Answer:
A). Marxist criticism
B). Feminist criticism
D). Deconstructionist strategy
Explanation:
Feminist criticism, Marxist critique and deconstructionist strategy are schools of thought, which seek to analyze and describe the ways in which literature portrays the narrative of society through economic, social, political and psychological explorations inserted within literature. For this reason these terms can be considered sociological strategies. On the other hand, formalist strategy is a term that describes an emphasis of form on content or meaning in the arts, literature, religion, law, philosophy, and mathematics. In this way the formalist strategy is not considered a sociological strategy.
The sentence in which the infinitive phrase functions as the subject is the second one - To convert sunlight and energy into food is the end result of photosynthesis.
The third, it makes most sense to first describe the piano then say it was played.
Depending on the subject, he could go to his text book, online ebook, etc. He could look at his review if he was given one. He could find other books relating to the subject that could potentially help. (Not much to go on, hope this helps c:)