It is important for people to use privacy settings on social media sites on to control who can see their activity. Thus the correct answer is A.
What are social media sites?
Social media sites are referred to as tools of advanced technology that help in establishing a connection between people. It helps them to know to each other and maintain relationships between them from miles apart.
These refer to an online tool where users created their profile and shares their pictures and activities they like and dislikes, nowadays it is also used to present their opinion among a group of peoples.
It is important to use privacy settings on these social media sites to avoid any kind of fraud or misuse of any personal information. The privacy setting helps an individual to control who can see their activity and restrict unknown visitors to the profile.
Therefore, option A to control who can see their activity is an appropriate answer.
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