With this COVID19 pandemic, many businesses utilize social media to optimize the marketing strategy. a. Is using social media for marketing cost-effective? Cite an example. b. Your best friend has an online business selling homemade soap with various scents. She has been using an internet social media platform (Instagram and Facebook) for selling and promoting her product. Recently, your friend received negative responses to her social media post complaining about different issues. With this, she contacted you for help on how to handle these issues because she does not want products to be affected by negative comments posted by customers and you agree to help her. What ethical considerations would you do? Cite at least 3 and explain briefly.