The correct answer is a Car salesman
Step-by-step explanation:
Event planners are professionals in planning and organizing events, which includes weddings, conferences, birthday parties, festivals, among others. Moreover, planning events involves multiple elements such as music, food, decoration, among others and this makes event planners be in contact with vendors (companies or people that sell specific products or services).
In this context, an event planner is likely to be in contact with musicians because music is an essential element in many events, caterers because food is quite common in events, and florists because flowers are often used as part of the decoration. However, it is not likely event planners are in contact with a car salesman because most events do not require buying cars and this is not a common element in events.