I would need to know more information from the passage to answer this, but from what i read i think it’s B.
Answer:
I learned that the rover landed on Mars in August 2012
Explanation:
The article and answer choices are needed
Answer:
a. Adult students are frequently motivated to return to school... (Alex, Marks, & Jones, 2005).
Explanation:
It is important to consider that when information is paraphrased and you need to cite it, you have to include both the author/authors and the date such as in the example above. And although it is not a requirement, it is better to also include the number of the page from which the information was taken.
I’m not 100% but I think it might be sibilance, which is the repitition of the ‘s’.