David purchased the first trailer for his company. He involved all of the company's department heads in the decision, created a list of potential specifications for the trailer, invited potential vendors to bid on this purchase, negotiated with vendors before the final purchase decision was made. This buying situation would most likely be classified as a

A). New buy

Explanation:

As per the given descriptions, the given buying situation would most likely be characterized as a 'new buy.'  It reflects that David is purchasing it for the very first time and therefore, he has no previous experience of buying that product or its price and this is why he considers every possible factor that may affect the purchase like 'involving the company's department heads, a list of potential specifications for the trailer, invitation to potential vendors, negotiation with them,' etc.