How market management adds in promoting the awareness about product and services among the people.

The most important function of marketing, along with others, is to create awareness about products/services and make loyal customers. Through marketing customers get an opportunity to know what you are offering them and you get the opportunity to convince them to buy your products/services.

Explanation:

Try this one!

The most important function of marketing, along with others, is to create awareness about products/services and make loyal customers. Through marketing customers get an opportunity to know what you are offering them and you get the opportunity to convince them to buy your products/services.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."