According to Howard Gardner's theory of Multiple Intelligences, linguistic intelligence is the ability to use language effectively, both in writing and speaking. William Shakespeare, Premchand, and Rabindra Nath Tagore are all renowned for their exceptional skills in writing plays, poems, and stories, demonstrating a high level of linguistic intelligence. Their ability to manipulate language and communicate effectively through literary works places them in the category of linguistic intelligence. Therefore, the correct answer is "Linguistic."