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."
Answer:
That is incorrect subject-verb agreement. 'Get' should not be singular, 'gets', instead of plural 'get' (that is the way with verbs).
Answer:
Krakauer won't get to those details until near the end of the book. Secondly, by starting at the end of the story, Krakauer is indicating that this book will be centrally concerned with exploring Chris's death. The facts of his life will be important insofar as they provide an explanation for how it ended.
Explanation: