The heart of the marketing mix is the:
a. product offering and product strategy
b. place and distribution strategy
c. sales promotion and personal selling strategy
d. product packaging and pricing strategy

The correct answer is A. Product offering and product strategy.

Explanation:

The marketing mix is one of the classic elements of marketing, it is a term created by McCarthy in 1960, which is used to encompass its four basic components: product, price, distribution and communication. These four variables are also known as the 4Ps for their Anglo-Saxon meaning (product, price, place and promotion). The 4Ps of marketing (the marketing mix of the company) can be considered as the traditional variables that an organization has to achieve its business objectives. For this, it is absolutely necessary that the four variables of the marketing mix be combined with total coherence and work together to complement each other.

the third answer is correct.