Final answer:
The building of an online presence through platforms is referred to as social media. The correct answer is b.
Step-by-step explanation:
The building of an online presence is commonly referred to as social media. In today's digital age, social media is a key component in establishing and enhancing personal and professional presence on the internet. These actions are not only important for social interaction but also play a critical role in the modern job market.
Employers often review candidates' social media profiles to assess their professionalism and fit for a position. Additionally, individuals can leverage social media to demonstrate their expertise, connect with industry professionals, and uncover opportunities in the hidden job market.
Thus, regularly updating and strategically using one's social media profiles is crucial for developing social capital and potentially facilitating various forms of political participation. Hence the correct option is b.