Answer:
The common good, as its name indicates, is the set of situations or events that produce a global benefit for all or most of the citizens of a given nation, state or city. Thus, for example, improvements in public infrastructure, in the minimum wage, etc., are issues that benefit the majority of the population, so they can be considered part of the common good.
Therefore, in constitutional democracies, citizens are guaranteed their participation in electoral processes, where each individual expresses their interests and convictions in their vote. Therefore, this is where the common good is related to democracy, as all citizens cast their vote with the conviction of achieving said common good for themselves as individuals and for society in general.
