A salesperson calls you, claiming to represent a well$-$known software company you use. They offer a significant discount on a software renewal but require immediate payment over the phone. What's the MOST appropriate response to avoid a potential social engineering attack?

Engage in a lengthy conversation to waste their time.

Thank them for the offer and politely ask if they can send you an email with the details so you can verify it with the company directly

Tell them you're not interested and hang up the phone

Provide your credit card information over the phone to secure the discount.