Answer:
A problem can be personal or emotional.
Explanation:
It can be difficult to identify a problem because it can be personal or emotional. For example, your brain may force out certain thoughts that may harm you. Therefore, it can be very hard or impossible to identify and emotional or personal problem.
It's between b and c because they are good examples but c is more recommended
Answer:
Create Urgency. People are far more likely to participate if they feel a sense of urgency. ...
Be Hyper-Relevant. ...
Solicit Earned Media. ...
Leverage Social Media Strategically. ...
Use Your Existing Contact List. ...
Try Different Calls-to-Action. ...
Offer Incentives.
I hope this will help you