She's showing overconfidence, she think she's better than others and that makes her unapproachable
1) B. Sentinel is a soldier or guard whose job is to stand and keep watch
2)C I think
Older adults<span> become </span>more susceptible to infections<span> due to several factors. The combination of increased comorbid conditions and the decrease in activity of the immune system can make people </span>more prone to infections<span>.</span>
Answer is B. While the language he used was still considered modern English, he invented his own words which makes it confusing to understand for modern students.