Which Is the Simplest Definition of Primary Health Care

Which is the simplest definition of primary health care?

A) It is based on a multidisciplinary group of health care providers working as a team.
B) It provides essential care that is universally accessible to persons in a community and encourages self-management, self-reliance, and competence.
C) It focuses on health promotion and disease prevention among those who can afford to engage in behaviours that facilitate them.
D) It is based on local efforts to meet the Declaration of Alma-Ata, known as Health for All.