A. Four
I had to rattle my brain (and the internet :P) a bit for this answer, but here ya go.
A two-stroke engine performs compression, power, exhaust, and intake with two piston strokes.
Source: https://www.cycleworld.com/2015/04/06/two-stroke-motorcycle-engines-explained-tech-talk-by-kevin-cam...
A foil is the near complete opposite of the main character (whichever character they want you to find a foil for).
Rainsford and Whitney were good hunting friends with numerous similar interests. They could not be foils because of how close in similarity they were. Even when they disagreed on how animals felt about being hunted, Whitney seemed open to and intrigued by Rainsford's points and way of thinking.
Ivan is a near irrelevant character, being a mere Cossack who follows whatever General Zaroff says. He is mindless and has almost zero traits to even compare to Rainsford, let alone any traits aside from a mindless follower to begin with.
The answer would be General Zaroff. This is almost like the cliche protagonist vs antagonist foil. Both of them are hunters, but different kinds. Zaroff got bored with animals and wanted to hunt human people instead, whereas Rainsford had enjoyed the thrill of an animal hunt and thinks that the hunting of people is murder. Zaroff is more heartless and cold, a killer, if you will. Rainsford seems to think highly of actual people, and had no interest in playing Zaroff's game.
d. ecosystems experience change through human activity and natural events bb ♡
Answer:
Regional war between Germany & U.S.
Answer:
I think that it would be a great idea to try as hard as she can during the exam and after the test go see a supervisor or teacher to explain what happened. Maybe she can then retake her exam or her situation can at least be taken into account while grading.