You have every bit of control over these factors. If someone develops a disease due to these factors, it was likely to be fully their responsibility.
I am going to have to go with D. Social skills.
Answer:
Was not constrained by the bystander effect.
Explanation:
The bystander effect may be defined as the psychological effect that might discourages the individual from intervening in the situation. The individual take more positive action in case of crisis only.
The greater the chance of the bystander the lower the chance to get help in the distress. As described the situation in the question, Eddies' behavior is not controlled by the bystander effect as he immediately went to get help from the other people.
Thus, the answer is- not constrained by the bystander effect.
Your knee has a knee cap while your elbows do not. The elbow also contain less cartilage and and ligaments.