Which behavior change is not common in drug abusers?

The answer is: Taking on more responsibility.

Drug abusers tend to have too strong addiction for the substance to the point where they are willing to abandon both their social relationship and financial well being in order to get another set of drugs.

Since the drugs that caused addiction tend to negatively affect our overall function, they would not be able to take more responsibility.

in this scenario it would be the consumer demand as most influential in making the decision. the band members need to figure out where and from whom they will make the most money, in other words who out of the two consumer groups - football fans or car drivers - will spend their money, who is more likely to contribute to their cause and buy what they are offering.

the answer to your question is,

d. when a child was born.

-mabel < 3