Answer:
Cherry-picking the evidence.
Explanation:
Cherry-picking can be defined as a fallacy of incomplete evidence. In this, a person tends to choose only those evidences that support his/her claims. Evidences that stand contrary to our claims are ignored. It is a fallacy of selective choosing or picking.
In the given case, Trina is being a cherry-picker as she is ignoring the claims of why other parenting styles are useful. Trina recognized the parenting styles that her parents and relatives used and tried to focus on the advantages only of the authoritarian parenting style.
So, Trina is being a cherry-picker of the evidences.