It gives examples on how Jack and the boys personalities, characteristics, etc. are.
Hope this helps.
The correct answer is D. Research shows students who are best at managing their time also have the highest-grade point averages. Studies have shown that time management is highly related to academic performance. This is turn would help students to achieve high grade point averages.
Answer:
it really should stay closed. at this point it can only get worse
Explanation
In terms of the first question, "They" would be an objective pronoun, but it should be noted that this does not have to be so. for the second, the answer is "my".