Answer:
c) Set reasonable long term and short term goals and reward himself for meeting them.
Step-by-step explanation:
The reward circuit in our Limbic system of cerebrum is very powerful and yielding. Given the proper impetus to it, it makes us do stuff which we would definitely not do otherwise. Marlon does not like maintaining diets and working out. But he loves something else a lot.
So , if he decides that he will do something he really likes after workout and dieting as a reward for his hard work, his brain will automatically want to get the job done looking forward to the reward afterwards.