One explanation for the effects of deindividuation in groups is that groups

a) make people more inhibited
b) reduce the diffusion of responsibility
c) give people anonymity
d) increase personal identity

C. give people anonymity.

Explanation:

Members of a large group typically would not recognize every single members of the group (which resulted in anonymity for some members) .  And without actually knowing each other, it is hard to actually act as a collective for the benefit of the whole group.

When we observe our society as a whole, we can definitely say that we belong to one social group. But, the anonymity that we have actually slowly make us feel deattached to the struggle and the needs of other group, which eventually lead to deindividuation.

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .