What could potentially happen if the pressure in a draft beer system is too low?

When the pressure in a draft beer system is too low, it can lead to difficulties in dispensing the beer properly. The primary reason for this is that low pressure can hinder the flow of beer from the keg through the lines to the tap. This insufficient pressure does not provide the necessary force to push the beer out effectively, resulting in slower or blocked dispensing.

In contrast, if pressure were at the proper level, it would ensure a consistent and efficient flow, allowing the beer to be served easily and at the desired carbonation level. Therefore, recognizing that low pressure directly impacts the dispensing process makes this answer the most appropriate choice.