The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Brachytherapy is:   (A) Irradiation of tissues from a distance   (B) Irradiation of tissues from a distance of 3 cm   (C) Irradiation of tissues by implants within the tissues   (D) Irradiation of tissues by radiopharmaceuticals
['(C) Irradiation of tissues by implants within the tissues <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Irradiation of tissues from a distance \n (B) Irradiation of tissues from a distance of 3 cm \n (C) Irradiation of tissues by implants within the tissues \n (D) Irradiation of tissues by radiopharmaceuticals <> possible answers', '  Brachytherapy is: <> context@']