Answer: d) TTM is a theory about stages of change regarding people's health-related behavior.
Explanation: Transtheoretical Model(TTM) is the biopsychosocial model that based on the change of behavior in integrative manner. This theory consist of six stages that showcase the change and progress in heath-related behavior.
The six changes in the health behavior are as follows:
- Precontemplation
- Contemplation
- Preparation
- Action
- Maintenance
- Termination
Other options are incorrect because TTM is not related with Value expectancy theory, learning things and subjective probability and values changing the decisions .Thus, the correct option is option(d).