Question: Which of these is a statement of opinion? Participating in random acts of kindness allows you to do something nice for someone you might or not know. Participating in random acts of kindness is the most beneficial way to promote long-term happiness. The GGSC compiled an assorted list of short exercises that assist people in improving their happiness. The GGSC states that the purpose of mental subtraction is to gain appreciation for things that are often unnoticed. Need Assignment Help?