Which age structure would be associated with a country that has a rapidly growing population? 

A)  a structure that forms an inverted pyramid 
B)  a structure that has a large prereproductive population 
C)  a structure that shows little variation in population by age 
D)  a structure that has a broad-based pyramid

Age Structure

The distribution of individuals among various age groups in a population, often depicted as a population pyramid, influencing growth and social dynamics.

Prereproductive Population

Individuals within a population who have not yet reached the age where they can reproduce.

Inverted Pyramid

A graphical representation that inverts the conventional pyramid shape to illustrate a reversal of a norm, such as demographic statistics or organizational structures.