No, "the" is not a preposition as it does not describe a place in which something is. "The" would be called an article, like "a" or "an".
The answer to your second question, therefore, is D. Joanna hid the gift behind the couch, as "behind" would be the preposition because it describes where the gift is.
I hope this helps!
I think its A because relevance is necessary for academics because you need facts of whatever you are learning
B ( not very sure bc you didn’t give a passage )
Nina, Pinta, and Santa María.
The snake in the cartoon represents the powerful businessmen. The snake has Monopoly written on the underside. The correct answer is A.