Which competitive events are traditionally featured at the Iowa DECA State Conference?

The correct choice highlights the competitive events that are a core part of the Iowa DECA State Conference, emphasizing the organization's focus on preparing students for careers in marketing, finance, hospitality, and management.

Role plays are designed to simulate real-world business scenarios, allowing participants to demonstrate their problem-solving and communication skills in actionable settings. Written events require students to research and analyze business topics, culminating in reports or presentations that showcase their understanding of industry standards and practices. Professional selling competitions further cultivate essential sales techniques, enabling participants to practice their persuasive communication and customer engagement abilities in a competitive environment.

These activities align with DECA's mission to enhance career readiness through practical experience and skill application. In contrast, the other options provide examples of events that do not relate to DECA's focus on business education, making those choices less relevant to the context of the Iowa DECA State Conference.