Comprehension of Sir Arthur Conan Doyle's major contributions to British literature requires A. an interest in detective mysteries. B. medical training and experience. C. understanding of the Scottish heritage. D. use of deductive reasoning skills.

The correct answer is option D.

Comprehension of Sir Arthur Conan Doyle's major contributions to British literature requires the use of deductive reasoning skills. These skills are the ones that make the character of Sherlock Holmes so famous. In the story, he applies deductive reasoning to solve medical and mistery problems. This approach revolutionized British literature because, traditionally, detectives in fiction could solve mysteries only by clues.