Final answer:
The point labeled "D" represents the state of growth.
Step-by-step explanation:
The point on the graph labeled "D" represents a state known as growth. In biology, growth refers to the increase in size, number, and complexity of cells, tissues, and organisms. It is a normal and essential process for living organisms. In this context, point D on the graph indicates a period of unregulated cell division, which can lead to the growth of tumors and cancers.