Which of the following is part of preparing for a design sprint?

Gathering necessary supplies is a crucial step in preparing for a design sprint because it ensures that the team has all the tools, materials, and resources needed to effectively participate in the sprint. This might include items like post-it notes, markers, whiteboards, and any other materials needed for prototyping and collaborative work. Having these supplies ready helps streamline the process, allowing team members to focus on brainstorming and problem-solving without being interrupted by logistical issues.

While buying new equipment and creating a budget proposal could be relevant in some contexts, they are not inherently part of the design sprint preparation itself. Additionally, developing marketing strategies is unrelated to the focus of a design sprint, which is primarily about rapid ideation and prototyping rather than preparing to promote a finished product. Overall, gathering supplies is key to fostering an effective and efficient sprint environment.