Answer: Warm Calling Method of Prospecting
Explanation: Warm calling is a method of prospecting and most likely the most efficient method of prospecting today. It entails making enquires about your prospect to know what both companies have in common, how your company can be of help/ assistance to the company and all about their products /services.
Nicole from the question got an information about the civil engineering company and first sent them a congratulatory message to the firm in it he also used the medium to introduce their products that will be of benefit to the civil engineering firm.