Prepare for the CFA Level 3 Exam. Utilize flashcards and multiple-choice questions with hints and explanations to boost your readiness. Ace your test!

A key characteristic of a foundation is that it operates as a grant-making institution that relies on gifts and investment assets to fulfill its mission. Foundations typically gather funds through donations from individuals, corporations, or other entities, and then allocate these resources in the form of grants to support charitable activities, research, education, or other causes aligned with their objectives.

This characteristic highlights the role of foundations in the nonprofit sector, as they are designed primarily to give away resources rather than operate for profit. Moreover, their reliance on investment assets underscores the importance of sound financial management and investment strategies, ensuring their ability to sustain grant-making activities over time.

In contrast, the other options do not accurately capture this essence of foundations. Not all foundations are funded solely by multiple corporations, as many operate with donations from individuals and philanthropic groups as well. Additionally, not all foundations exclusively rely on government grants, as they often diversify their funding sources to include private donations and investment returns. Lastly, while some foundations may focus on local or community-based initiatives, many have a broader scope that allows them to operate regionally, nationally, or even internationally, thus extending their impact beyond a single community.