The increased anterior-posterior chest diameter associatedwith obstructive lung disease is caused by

Severe smoking can lead to a chronic obstructive pulmonary disease called emphysema. The increased anterior-posterior chest diameter also called barrel chest. It is developed in the later stage of a chronic obstructive pulmonary disease and makes the breathing process inefficient.

The answer is d, a and bbecause, hallucinogens can cause people t do things they wouldn't normally do like they wouldn't normally put people's lives in danger.hope my answer has you : )