Social media measurement consists of using numerical measurements, such as counting the number of website visitors, number of fans and followers, number of leads generated, and the number of new customers; while, social media measurement is the process of accessing the opinions and beliefs about a brand and primarily uses sentiment analysis to categorize what is being said about a company.

Quantitative / Qualitative

Explanation:

A quantitative survey is the one responsible for analyzing mathematical calculations and numerical data, it can be performed through counting, statistics, graphs and everything involving mathematical operations. Qualitative research is the most subjective research, ie, it is used as a gauge of trends, opinions and hypotheses.

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."

answer; permissive;