PWM Responses: How Short Can They Be?

If the question is “Discuss three factors that suggest the SU endowment has greater risk tolerance than the WU endowment,” Can I just bullet point, “Donations have been increasing for SU and decreasing for WU, so greater risk tolerance” and move on? Or do I need a lengthy answer like “A smoothed spending rule will decrease volatility in spending requirements, allowing SU to assume higher risk tolerance.”

I need to know the bare minimum I can write so I can move on. I can’t stand these paragraph-long answers on mock exams.

Bullets are strongly recommended