What are the company guidelines regarding alcohol consumption at events?

The correct answer highlights that alcohol can only be purchased with level 3 permission. This guideline is typically put in place to ensure responsible consumption and oversight of alcohol use at company events. By requiring permission from a higher level of authority, the company not only regulates access to alcohol but also minimizes the potential for misuse and abuse.

This policy reflects a risk management approach, allowing for careful consideration of who is granted the authority to purchase alcohol. It emphasizes the company's commitment to maintaining a safe and professional environment during events.

The other options do not align with common practices aimed at promoting responsibility. For instance, restricting alcohol purchasing only to certain levels, as mentioned in the correct answer, ensures a balance between enabling social interactions and maintaining professional standards. Thus, option B stands out as the most sensible and responsible guideline regarding alcohol consumption at company events.