Questions 158~160 refer to the following letter.
Jessica: Hi Lucy, how can I help you today?
Lucy: Hi Jessica, it's been really difficult for me to book an appointment with you for next week. I'm a regular guest of yours and I would expect better service. 
Jessica: I'm sorry to hear that, Lucy. We're in high season right now, so it's been really busy. What dates and times are you available?
Lucy: I've been trying to find a time that works for me for days. I can't do next Thursday at 2 pm because I have a meeting. Friday is completely booked up, and Saturday is not possible because I have a family event. This is really frustrating. 
Jessica: I understand, Lucy. I wish I could fit you in somewhere, but my schedule is completely full. I can put you on the waiting list in case there's a cancellation, but I can't guarantee anything. 
Lucy: This is unacceptable. I'm a loyal customer, and I should be able to get an appointment. I'll have to find another stylist who values my business. 
Jessica: I'm sorry you feel that way, Lucy. I assure you that we value your business, but high season is a challenging time. If you change your mind, please let me know and we can try to find a time that works for you.
【題組】158.Why is Lucy having trouble booking an appointment with Jessica?
(A)Jessica is not available next week.
(B)Lucy is not available during Jessica's available times.
(C)It is high season and Jessica's schedule is booked.
(D)Lucy is not happy with Jessica's service.