These are examples of telemarketing. As the nutribullet blender and shake weights became successful after appearing in television commercials. Hence, option A is correct.
Telemarketing is the practice of selling products or services over the phone. On occasion, businesses will call it "tele-sales" or "inside sales." The most well-known form of telemarketing is cold calling, in which a company calls a person for the first time with the intention of pitching them one of its products or services.
Sales agents, often known as telemarketers, will call potential customers on the phone or over web conferencing in order to offer them the supplied goods and services. Calling that is both inbound and outbound are the two types of telemarketing.
Thus, option A is correct.
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