Final answer:
Social media metrics are tools used to measure the performance and impact of social media campaigns and activities.
Step-by-step explanation:
The correct answer is B) Social media metrics. Social media metrics are tools used to measure the performance and impact of social media campaigns and activities. These tools can provide information on metrics such as reach, engagement, impressions, and conversions. While these tools can generate a lot of information, it is important to recognize that the information collected may be selective and not representative of the entire population.