Instructions: 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".
Input: [header] How to time your trip to tokyo [title] Consider your reason for visiting tokyo and plan your trip accordingly. [substeps] Cultural attractions and landscape gardens and parks may be best enjoyed during certain times of year which should also be considered when timing your tokyo trip. Popular theme parks and activities such as disneyland can be crowded during certain times of year. <sep> (A) Delays in travel can also prevent you from fully enjoying tokyo. [title] Arrive at your airport at least 15 minutes early. (B) All these should be avoided if at all possible. Common attractions to consider when planning your trip include: carnival roller coasters, nightlife and the tokyo zoo. (C) [title] Consider traveling by bus instead of train. [step] Bus isn't the only option for traveling to tokyo. (D) Consider this when timing your trip to tokyo. [title] Review weather patterns and become familiar with weather occurrences during the time of year that you time your trip to tokyo.
Output:
D