In general, which of the following factors decreases the probability that a given person will come to the aid of a person in distress?

A) being certain that the person needs help
B) personally knowing the person in distress
C) having other people around who might also help
D) having plenty of time available

Aid

Assistance provided to individuals, groups, or countries in the form of goods, services, or financial support, often in times of crisis or need.

Distress

Severe anxiety, sorrow, or pain that causes emotional suffering.

Probability

A measure of how likely an event is to occur, expressed as a fraction between 0 and 1.