The correct answer is B.
If you want to assess your diet you need to make a list of all the foods you eat on a daily basis, that way you can see what is healthy and what is unhealthy and then you can go about eliminating the unhealthy food and making sure you are eating the right portion sizes of the healthy food. If you want to assess your complete diet this way seems to make the most sense.
C should be the answer because in that example he is not prepared nor is his flexible easily flexible by him being out at the movies on a weekend that he is on call. It shows the importance of needing to be flexible and easily adaptable in case of emergency.
Can u show a pic of the question