A prepositional phrase has to start with a preposition, and the only option here which starts with one is D, 'during the darkest night', where 'during' is a preposition.
The paragraph is main idea detail detail
Answer:
In "Condensed Milk" the protagonists main motivation is to get food and that is why he tricked Shestakov that he would escape with him if he gave him condensed milk.
Explanation:
Testimonial - a written declaration certifying to a person's character, conduct, or qualifications, or to the value, excellence, etc., of a thing; a letter or written statement of recommendation.
