Final answer:
Renee is developing a strategic plan for her organization, which focuses on long-range objectives and overall organizational success and security over a span of three to five years.
Step-by-step explanation:
Renee is working on a long-term security plan for her organization with a planning horizon of three to five years. Such plans are generally categorized as strategic plans, meaning they are meant to guide the organization towards achieving its long-range objectives. These plans are typically broad, considering the whole organization, and set priorities for resources and time in an effort to reach significant goals that ensure the organization's prolonged success and security. Different from operational or tactical plans, which often focus on the short term or specific areas of operation, strategic plans look at the bigger picture and are concerned with the sustainability and direction of the organization. Thus, the type of plan Renee is developing is a strategic plan.