Cuong is a social media manager, and he is evaluating the number of videos posted to YouTube that mention his company or its products, the number of visitors to its YouTube channel, the ratio of comments to videos, and how long people actually watch the company's videos. Cuong is $q,.$

$$ applying a benchmark to see if he is spending enough on social media

$$ applying metrics that are accepted by companies in a specific industry

$$ using quantitative measurements to assess the effectiveness of the social media plat

$$ using qualitative measurements to assess the effectiveness of the social media plan

$$ engaging in sentiment analysis to assess the effectiveness of the social media plan