Detailed Instructions: In this task, you will be shown an extract from a movie plot. You need to read the extract and create questions that can be answered from the extract. Once you create a question you also need to provide the correct answer for it. Write your answer like "Question: your question, Answer: your answer". The questions should be well-formed and grammatically correct. The questions should be completely answerable from the given passage and should not require any external knowledge. Subjective questions are not allowed. Short answers containing words that are present in the passage are preferred. Create questions that result in factoid answers. A simple rule of thumb to decide whether a question is a factoid or not is to see if two different people with average reading/comprehension skills would come up with the same answer after reading the passage.
Q: After the death of her close childhood friend, 17-year-old Sarah Landon (Rissa Walters) goes to visit her friend's grandmother, Thelma Shaw (Jane Harris), in the small town of Pine Valley, California. Upon arriving in Pine Valley, Sarah's car starts making strange noises, and she stops at the repair shop. While there, she talks with the owner and learns of a story involving a local family, and asks Mrs. Shaw to get the full story. As the story goes, a young man named David Baker (Brian Comrie), who lives in Pine Valley, will be killed by his deceased uncle on his 21st birthday, which is that coming Monday. David's uncle, Ben Woods (Rusty Hanes), was angry with his sister because of her involvement in the car crash that killed his own son, Johnny, on his 21st birthday. After receiving the threat as a child and learning of his uncle's death, David became obsessed with the paranormal, trying to find out how Ben would kill him. He became a recluse, moving to a loft above the family's barn. Sarah and Matt (Dan Comrie), David's brother, try to help him before his birthday arrives, though initially Matt doesn't believe that his brother will really die. At first, David believes Ben was reincarnated, and that a boy who moved next door to the Bakers, Justin Van Kamp (Kendell Linley), will murder him. After encountering Ben's spirit in the man's former home, he realizes Ben is still a spirit and will instead possess someone else to kill him. As it grows closer to midnight (the paranormal hour) on David's 21st birthday, Sarah, Matt, and David, with the help of a local psychic's niece named Yolanda Lopez (Sylvia Enrique), uncover a ritual that may save David's life. At midnight, they begin the ritual, and when Matt and Sarah return to Mrs. Shaw's house, they find out that Mrs. Shaw is the person who was possessed by the spirit of Ben Woods. The two teens race back to the Bakers' home, with Mrs. Shaw/Ben in close pursuit. Just as the possessed woman is about to kill David, Justin van Kamp appears, and it is revealed that he is actually the reincarnation of Ben's son, Johnny. Johnny convinces his father not to kill David, and Ben's spirit moves on. Later that day, Sarah returns home to San Diego, saying that this adventure was only the beginning of strange occurrences in Pine Valley, hinting at a possible sequel.
A:
Question: How old is the heroine in the movie?, Answer: 17