The word “euthanasia” was first used in a medical context by Francis Bacon in the 17th century, to refer to ______________. A、"a deliberate intervention undertaken with the express intention of ending a life, to relieve intractable suffering” B、“termination of life by a doctor at the request of a patient” C、an easy, painless, happy death, during which it was a “physician’s responsibility to alleviate the ‘physical sufferings’ of the body" D、“painless inducement of a quick death”