I would say that for example an unethical tactic would be to promote the expanded use of hydrocarbons by expanding pipelines and tanker traffic which can result in oil spills on land and also in the precious oceans. Another unethical thing from the past was to promote the smoking of cigarettes by making it look 'cool' thus ignoring the potential damage to one's health from lung cancer.
Answer:
Option D.The author's attitude toward a subject.
Explanation:

Static Character -
a character who undergoes little or no innerchange
Maybe it means they're lonely and afraid. They find that there is no safe place to express how they feel.