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". 

Ex Input:
A person is riding a bike over a trail. they <sep> (A) go over several jumps on the trail. (B) set up a camera in the middle of the trail. (C) are going down the road on a dirt trail. (D) go through a tunnel on the side.

Ex Output:
A


Ex Input:
[header] How to buy land in colorado [title] Figure out how much you can afford. [step] Start by using an online mortgage calculator to determine how much you can afford to spend. These calculators normally ask you to input your income and associated expenses (e.g. utilities, other loan payments, etc. <sep> (A) ) by the year in which you obtained the land, and how long you wait for payment. [substeps] Once you have figured out the amount, use that as a guideline. (B) ) in order to find the value of your property as a whole. Consider the following : [substeps] You cannot start with a simple down payment. (C) ), as well as the months that you were unable to make the payments. [substeps] Each time you make a mortgage, you will need to subtract the following from your net expenses: home equity interest, vacation pay, expenses for meals and healthcare (e.g. (D) ) and then will determine how much you can afford to spend on a monthly mortgage payment. These calculations also take into account interest rates, mortgage terms and amortization.

Ex Output:
D


Ex Input:
[header] How to exercise after carpal tunnel surgery [title] Follow a doctor-recommended rehabilitation plan. [step] This plan will involve healing of your soft muscles, preventing wrist stiffness, and repairing your nerves and tendons. You will most likely have to check in with your doctor and/or physical therapist regularly to make sure that everything is going according to plan. <sep> (A) [title] Keep your wrist elevated as much as possible. [step] This is particularly important in the first four days after surgery to limit swelling. (B) [substeps] You will likely experience back pain, swelling, fluid and muscle weakness, and stiffness in the later days of recovery. Be sure that you are taking or prescribed medicine during this time. (C) Your doctor may make suggestions for accomplishing normal exercise before or after surgery. They may refer you to a physical therapist in your area, depending on your current situation. (D) Also, ask them to give you additional helpful tips and exercises. [substeps] Enroll in an exercise class or pre-workout class recommended by your doctor or physical therapist.

Ex Output:

A