Someone accidentally left B. His or her back back on that park bench. You are referring to a person.
So in a student government, the main purpose why it is establish is to empower the rights of the students as well as to encourage unity. Given that the little prince is the president, the school program which focuses on friendship and camaraderie would be more on team building activities. Hope this answers your question.
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."
C. realism is the answer because it follows a realistic timeline
The answer is D vertebrates <span />