Using the context clues in the sentence. You can accurately determine the meaning of the word onerous. The sentence starts off with stating a 10 - page research project. That would most likely be tedious and hard. So the best answer choice is answer C. Difficult
Explanation: Context clues are hints that an author gives to help the reader to understand a difficult or unusual word within a sentence or paragraph. In the given sentence we can identify the meaning of the word "onerous" as "difficult" (corresponding to option C), because the author uses an example as a context clue, in this case, the example is writing a 10-page research project, he describes this task to be "onerous" so we can infer that it is "difficult."
In The Red Badge of Courage, when Henry wakes up in camp the day after fighting, he first think he is in a Charnel place because the sleeping men around him look dead.