In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to vacation in chicago [title] Research hotels online and book as soon as possible. [step] Chicago is a popular destination and hotels fill up fast, so book a room as soon as you start planning your trip. Search online to compare prices, features, ratings, and locations of hotels. <sep> (A) [substeps] First, research your hotel where the favorite hostels are located, and check out online reviews. You can also rent the hotel on itunes. (B) Keep in mind that hotel chains often close fast and can't accommodate your group's arrival or departures day or night. Ask hotels about their amenities (i.e., amenities like amenities like bathrooms, dining rooms, and other amenities). (C) Look for a hotel that is well-rated, centrally-located, and priced within your trip budget. [substeps] Make sure to only visit reputable hotel-booking websites. (D) [title] Assemble accommodations or small children in your hotel or plan to stay overnight. [step] Use automated remote control to help ensure that your children stay safe while staying in the hotel.
A:
C