Science fiction has to do with
1) Science - the stories are based on technology, often technology that doeis not yet exist, often space travel
2) Fiction, so not real stories
So the correct answer is :C. Characters often face problems related to future technological advancements.
Science fiction lets us imagine stories that are not possible today such as human cloning and make us question what ethical and other problems would arise.
Hauting America
In a century of inventions and discoveries, such as Charles Darwin's theory or the implementation of the telegraph, there was a parallel world, another life that was taking place in the USA.
Although the supposedly ghosts which were photographed were proved to be a fake (a smart trick of double images was used to create them), there actually existed unexplained facts connected to the supernatural.
Wandering spirits were seen or heard, or simply felt, by ordinary people while they were leading their ordinary lifes. Sounds of chains, mourns and creepy places began legends that we still keep in our culture.
Haunting America in the nineteenth century was a chain of events that arouse the interest of past beliefs related to life after death. However, above all was the cradle of several literary works and film productions.
If I had to take a guess I believe he means that he is a very smart intelligent history teacher. He is familiar to the topic of history and knows enough to be a teacher, and a very good one at that. I hope this answer helped and I'm sorry if it didn't.