The correct answer is C. Meeting people unannounced.
Cold calling is a sales technique where a salesperson contacts potential customers who have not previously expressed an interest in the product or service being sold. This can be done by phone, email, or in person.
Cold calling is often seen as a low-quality sales technique because it can be intrusive and annoying to the recipient. However, it can be an effective way to generate leads and sales, especially if the salesperson is well-trained and has a good understanding of the product or service being sold.
A. Meeting the customers in winter is not cold calling. It is simply meeting the customers during the winter season.
B. Meeting the customers when they are suffering from cold is not cold calling. It is simply meeting the customers when they are feeling cold.
D. Meeting the customers after fire has been extinguished is not cold calling. It is simply meeting the customers after a fire has been put out.