Who cannot serve as a team official during a netball match?

In netball, the role of a team official is specific and must adhere to certain standards to ensure the safety and integrity of the game. The correct answer highlights that anyone who is not a qualified medical professional cannot serve as a team official during a match. This is essential because team officials have responsibilities that include ensuring the well-being of players, and having a qualified medical professional on hand ensures that any injuries or health concerns are appropriately addressed.

This requirement emphasizes the importance of knowledge in first aid and medical protocols during a match, reflecting netball's commitment to player safety. Team officials are responsible for making critical decisions, and having the appropriate medical expertise is vital for providing immediate care and guiding players on health-related issues during the game.

The other options suggest various conditions that would not necessarily disqualify someone from serving as a team official. For instance, prior playing experience or age do not inherently determine someone's capability or eligibility to serve in an official capacity. Similarly, lack of coaching experience isn't necessarily a barrier if the individual fulfills the role of a medical professional. Thus, only the qualification in medical expertise distinctly sets the criteria for who can serve as a team official.