Final answer:
The correct answer is A.
In the context of the economy, queues do not grow indefinitely because the carrying capacity, imposed by resource limitations and the laws of supply and demand, ensures that periods of demand exceeding capacity will eventually stabilize.
Step-by-step explanation:
Queues do not grow indefinitely because the period in which demand exceeds capacity generally will not last forever. In economic terms, this concept is related to the idea of carrying capacity, which is the maximum population size or demand that an environment's resources can sustainably support. When the demand peaks, resources may become limited, resulting in a slowing growth rate until a state of equilibrium is reached where demand matches the capacity.
In the context of the economy, the idea of indefinite growth is not realistic. The laws of supply and demand, as well as limitations in labour, physical capital, technology, and market structures, impose constraints on how much an economy can produce. Thus, even with increased demand, an economy can only grow to its productive limits before the growth rate plateaus or levels off, ensuring queues or demand will not continue to rise indefinitely in a market system.