I wanna say that your answer is B. Let me know if you get it right!
Answer: Oona is planning to ambush the Russians.
In this excerpt, we see that Oona is instructing Negore as to how to lead the Russians. Oona states that Negore should show them the way, to where they wait in a passage up the rocks. The fact that they are hidden, and that they are waiting for the Russians to pass, along with their negative attitude towards them, implies that they are planning an ambush for the Russians.
Answer:
C. Anthony's headache vexed him all morning, so he decided to take a break from writing his research paper.
Explanation:
The correct answer is Option C.
This is true because looking at the meaning of vex, one will discover that it means to cause perplexity and to bring distress or suffering
This means that Anthony's headache caused him distress which made him to have a break from writing his research paper.
The prefix is "ad-" meaning "increase"