What allows consumers to receive goods and services in a non-price rationing system?

a)consumer’s ability to pay

b)first-come, first-served

c)free of cost

d)lottery

The question "What allows consumers to receive goods and services in a non-price rationing system? The answer here is B: first-come first-served or also known as the queuing system, this is done to resolve rationing problems brought by price ceilings.