While generous disability insurance can those who have been permanently injured, it can also increase the likelihood that individuals will falsely claim to be disabled. this likelihood is a(n):
a. direct incentive
b. indirect incentive
c. positive incentive
d. innovation
e. marginal cost

C. positive incentive

Explanation:

The positive incentive consists in increasing the frequency of a behavior caused by the addition of some benefit that would be the result of that behavior. It is the stimulus to a behavior that did not exist before the event occurred. For example, disability pension stipulation is an event that benefits the disabled. However, the existence of this benefit may encourage behavior (which previously did not exist) in people who are not disabled to say they are.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; have joints that fail from excess by early the accumulated effects of unnoticed infections,all of these things are possible for a person born without the ability to feel pain;