The Ridgeview neighborhood has a not-for-profit homeowners association (HOA) that maintains a pool and playground as well as pays for maintenance of land in the neighborhood that is not individually owned. Which of the following activity indexes might the Ridgeview neighborhood association use when developing their budget? O square footage of land in the neighborhood O number of employed individuals in the HOA O number of occupied houses in the HOA O number of individuals living in the neighborhood, including children