A is correct that is wat i think the answere is
D. avoid will be your answer
Answer: c appearance
Explanation:
That way, people would see what nathan did without having to holr conversations with him, he obviously doesn't indulge in small talks. So he makes things obvious through his appearance.
The third option is correct: "Art and math are courses architecture students must have on their schedules."
The other two uses the word "their" when referring to a single thing/person. The correct word should be: "Each architecture student must plan his/her high school and college courses carefully." and "Every school of architecture sets its own specific requirements."