A product first introduced in $1937,$ Old Spice invigorated its brand by taking advantage of a clever marketing campaign to create a lot of brand buzz. Which of the following is true of viral marketing?

Question $78$ options:

It is the digital version of word$-$of$-$mouth marketing.

It refers to online marketing problems caused by technical glitches.

It is another term for the unethical invasion of online privacy.

It is an automated system that manages digital sales and marketing functions.

It is a system that allows a supplier to access a customer's inventory levels online.