Which of the following best describes the difference between complementary and alternative modalities?

A. Complementary modalities are used alongside conventional treatments, while alternative modalities replace conventional treatments: Complementary therapies function as adjuncts to standard biomedical care, such as using massage alongside chemotherapy. Alternative therapies are used in place of traditional Western medicine, such as choosing a specific diet instead of surgery. This distinction defines their role in the care plan. B. Complementary modalities are non-invasive, whereas alternative modalities are always invasive: Many alternative modalities, such as homeopathy or herbalism, are non-invasive, while some complementary techniques like acupuncture involve needle insertion. The classification is based on the relationship to conventional medicine, not the level of invasiveness. This choice is an overgeneralization of the techniques. C. Complementary modalities are supported by scientific evidence, while alternative modalities lack evidence: Both categories contain practices with varying levels of scientific validation; some alternative therapies have research support, while some complementary ones do not. The presence or absence of evidence does not define the terminology. Their definitions rest on how they are integrated into the treatment. D. Complementary modalities focus on physical therapies, while alternative modalities focus exclusively on mental health: Both modalities encompass a wide range of physical, mental, and spiritual practices. For example, meditation can be complementary, and special diets can be alternative. The focus of the therapy does not determine its classification as complementary or alternative.