External barriers to change include lack of facilities, materials, and social supports. Internal barriers are lack of knowledge, insufficient skills, and undefined short- and long-term goals.( Select all that Apply.)

A. Lack of knowledge is an internal barrier because it relates to personal understanding or awareness that can impede change. B. Lack of facilities is an external barrier, as it relates to resources or infrastructure beyond the individual’s control. C. Lack of defined goals is also an internal barrier as it affects an individual's ability to plan and implement change effectively. D. Lack of social supports is an external barrier, affecting the individual’s ability to implement change based on external factors. E. Lack of materials is an external barrier, which is beyond the individual’s personal capability to change but rather a resource issue.