Answer:
a. unions allow for smaller entities to pool their resources.
Step-by-step explanation:
The makers of the United States Constitution insisted on unification of all states, believing that it would result in a benefit for every state individually. While some states were small, other were scarce in different types of resources, so constitutionalists like James Maddison insisted on making a federation because every state can participate in sharing their resources and improve lives for all. However, these resources needed to be managed carefully so there were no over-use or exploitation of single entities.