D. when products generally become more expensive over time
Role playing? BTW tell Alison and John to get a life.
I believe the answer is <span>consciousness
From the description above, Dr. Sim is studying the part of the thought process that we conducted <em>on purpose</em>.
If Dr. sim studies activities thought process such as dreaming and how our perception is formed, we can conclude that Dr. Sims is studying the thought process that we conducted without our awareness or Sub-consciousness.</span>
<span>His nonviolent actions were inspirational in other nonaggressive movements around the world.</span>