Answer: Maybe to keep the clothing clean because it could get dirty around the food. Some people are allergic to some foods and don't want them any where near their clothes. To keep the store more organized.
Explanation:
No it is not the main energy source
According to Paul Baltes and his colleagues, an effective selection strategy is:
C. Focus on the mos important goal at a particular time.
Elective selection refers to processes that are involved in selecting from a pool of alternative pathways. Loss based selection is a response to having less resources or loss of previous goal relevant means, which leads to the reconstruction of one's goal hierarchy or the search for new goals.
Answer: Are you talking about ligaments? I believe your answer is ligaments, I apologize if I am wrong.