According to the social cognitive theory, a person can learn by:

According to the social cognitive theory developed by Albert Bandura, people learn by observing others and reproducing learned behaviors in order to maximize rewards.

This process is known as observational learning and modeling.

Choice A is incorrect because it only mentions modeling, while choice B is incorrect because it only mentions observation.

Choice D is incorrect because direct reinforcement is not a part of the social cognitive theory.

Programs based on theory are more likely to be successful because they provide a framework for understanding and addressing the root causes of health issues.

Health promotion theory can help nurses to embed health promotion aims and values in their practice, and contribute to the improvement and maintenance of population health.

Choice A is incorrect because while theory can provide complexity and a deeper understanding of the process, this is not the primary reason for basing health education programs on health promotion theory.

Choice C is incorrect because the primary purpose of using health promotion theory is not to select program participants, but rather to provide a framework for understanding and addressing health issues.

Choice D is incorrect because while a theory may explain the reasons and causes of health behaviors, this is not the primary reason for basing health education programs on health promotion theory.