Answer:
a. adopt a more authoritarian parenting style.
Step-by-step explanation:
Authoritarian parenting is the parenting style which is characterized by very high demands and a low responsiveness. Parents with an authoritarian style have high expectations from their children but they provide with a very little feedback to their children. Authoritarian parents are very controlling and are strict. They strictly follow their rules and have a high need for obedience.
In the context, despite of Hezron's parents requesting him to comply with their requests, Hezron denies to comply to their request. Thus his parents should adopt authoritarian parenting style in order to make Hezron comply to their requests.
Hence the correct option is (a).