Q: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Passage: Sheltered since early childhood, Katie Price lives with a life-threatening sensitivity to sunlight caused by the rare genetic condition, xeroderma pigmentosum. During the day, she is housebound, having only her father, Jack and her best friend, Morgan, to keep her company. Katie comes out of the house every night, once the sun has set. One night, she is noticed and asked out by her longtime crush, Charlie, while playing guitar at the train station. Katie leaves suddenly, and forgets her notebook, which Charlie keeps. He returns the next day, and gives it to Katie when she shows up to retrieve it. He explains to her how he got his injury that prevented him from getting a scholarship to the University of California, Berkeley before kissing her on one of the boats.
However, Katie has yet to tell Charlie of her condition, despite her father warning her to. Charlie takes Katie out for a night to Seattle, where they go to a live show, and Charlie makes Katie play one of her songs on one of the city's streets. Once home, they go swimming out in the lake, and dry off with a fire on the beach. Charlie mentions watching the sunrise, and Katie freaks out, running home in fear. Charlie picks her up and quickly drives her there, but she does not make it in time, and is exposed to the sunlight for a couple of seconds. Katie runs inside, while Morgan and Jack come home soon after. Charlie still is standing confused at the front door, and Morgan explains that Katie has xeroderma pigmentosum. Once the doctors run some tests, Katie's doctor comes to the conclusion that Katie's brain is contracting, and it's only a matter of time before she dies.
A:
Who are the only people who keep Katie company during the day?