Final answer:
The subject of this question is Health. The dietitian should assess participants' literacy levels, medical and family histories, physical activities and lifestyle, as well as their readiness to make lifestyle changes.
Step-by-step explanation:
The subject of this question is Health. The dietitian has been asked to teach a course on healthy-heart eating to factory employees. In order to assess the participants' literacy levels and readiness to make lifestyle changes, the dietitian should also assess their medical and family histories and their physical activities and lifestyle.