Answer:
Symboisis.
Step-by-step explanation:
The term 'symboisis' can be defined as an idea that helps to inspect a unhealthy relationship. The term symboisis has been borrowed from biology in which the term denoted working of two living organisms together for common benefit and serves as one, in the process.
In psychology of relationships, the term denotes as an idea that helps to define unhealthy relationships. This is experienced within an interpersonal relationships that are difficult to break such as family, spouse, and-the-like.
In the given case, Dr. Tsai's perception of influence of unwanted behaviors by other family member is based on symbiosis concept, as per the definition provided above.
So, the correct answer is symboisis.