A firm’s marketing mix refers to the combination of

A firm’s marketing mix refers to the combination of: a. goods the firm offers to different market segments b. advertising media the firm utilizes to promote its products c. strategies regarding product, price, place, and promotion d. people directly involved in making marketing decisions

The answer is option “c”
i.e. strategies regarding product, price, place and
promotion.
The four Ps of marketing are the key factors that are involved
in the marketing of a good or service. They are the product, price,
place, and promotion of a good or service. Often referred to as the
marketing mix, the four Ps are constrained by internal and external
factors in the overall business environment, and they interact
significantly with one another.