Answer: (D) Competing
Step-by-step explanation:
According to the given question, Sharon is one of the chair-person of a local non-profit organization and usually in her free time she selected the various types of ideas, thoughts and then forced her ideas on the other organizational members.
So, on the basis of the given concept she is using the competing approach to conflict as this type of approach is typically used for making quick decisions for the purpose of resolving various types of problems or issue is an organization. This is also known as the conflicting management style.
Therefore, Option (D) is correct answer.