Which of the following is TRUE regarding social media and other communication technologies in a social media environment?

Companies should limit their online presence to prevent online attacks and malicious campaigns.

Social media and other communication technologies have created the challenge of responding to online rumours, false information, and attacks on company reputation.

Companies should respond to each and every rumour or piece of negative information that appears in social media

Companies should wait until a negative situation occurs to engage with customers in a social media environment.