Question

why do candidates strive to be constantly visible on media platforms?
to familiarize voters with their campaigns
to ensure their opponents cannot use media
to gain access to private funding

Explanation:

Candidates seek media visibility to make voters aware of their campaign messages, policies, and personal brand, which builds recognition and support. The other options are incorrect: candidates cannot block opponents from media use, and media visibility does not directly grant private funding access.

Answer:

to familiarize voters with their campaigns