Final answer:
In stage 4 of the demographic transition theory, people are most likely to die from degenerative diseases.
Step-by-step explanation:
In stage 4 of the demographic transition theory, people are most likely to die from degenerative diseases. During this stage, birth and death rates are low, and the population is stabilized. Non-communicable diseases like heart disease, stroke, and cancer are the leading causes of death in countries in stage 4.