Correct Answer: Both assertion and reason are correct, and the reason is the correct explanation of the assertion.

Solution : The correct answer is (a) Both assertion and reason are correct, and the reason is the correct explanation of the assertion.

The assertion states that AYUSH systems of medicine, such as Ayurveda and Yoga, are recognized as complementary to allopathic medicine, which is correct. AYUSH stands for Ayurveda, Yoga and Naturopathy, Unani, Siddha, and Homeopathy. These systems of medicine are recognized and practiced in many countries, including India, as complementary to allopathic medicine. They are often integrated into healthcare systems to provide additional holistic healthcare options to patients.

The reason provided states that AYUSH systems have their unique principles and practices, which provide holistic healthcare options, and this is the correct explanation of the assertion. AYUSH systems of medicine have their own set of principles, philosophies, and practices that focus on holistic health and well-being. They emphasize natural remedies, lifestyle modifications, and preventive measures to maintain health and treat diseases. By offering a holistic approach, AYUSH systems complement allopathic medicine, which primarily focuses on disease management using pharmaceuticals and surgeries.

Therefore, both the assertion and reason are correct, and the reason serves as the correct explanation for why AYUSH systems of medicine are recognized as complementary to allopathic medicine.