1/ wrong : Conan Doyle wrote his first mistery book in 1887 but Adgar Allan Poe wrote his first mistery in 1841
2. right : it emerged in the mid nineteenth century with Poe and Doyle
3. right : they are very famous but A.christie may be the best known in history
4.wrong. sherlock homes was imagined by arthur conan doyle
5. right. she wrote more than 80 novels