Before change: No animal should kill any other animal
after change: No animal should kill any other animal without cause
Answer:
c. the actions of the colonists are foolish and ineffective
Explanation:
The colonialist of the excerpt were trying to find a solution to a problem that did not exist, therefore needed no solving. The rock wasn't in the way of the railroad, still, they were unsuccessfully trying to blow it. It does sound like a silly behavior.
The word "issues" in the sentence is a plural noun in this case.
No, it is generally not true that when summarizing the of a plot, that one should notice the key ideas about how the conflict builds, since plot summaries depend less on why conflicts occurred, and more on why they occurred.