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:
[header] How to turn forty gracefully [title] Set a realistic weight goal. [step] A realistic weight goal should be based on the body and limits of your current self, not the self you wish you had or the self you had twenty years ago. Your goal should be specific and measurable, and limited in time. <sep> (A) [substeps] For example, if you are 35 years of age and have an empty stomach, then set a goal to lose ten pounds in thirty years from now on. Keep in mind that you will not see the difference in yourself if you start getting older. (B) If you are unable to accomplish a current weight goal, you should also consider setting another goal, often known as a baptism goal. Baptism goals provide an answer to both your doubting thoughts and worried questions. (C) [substeps] For instance, a goal to lose twenty pounds is a good goal. A goal that is vague like " i want to get fit " is not measurable. (D) [substeps] For example, if you are looking to reduce your overall physical limits, you might set realistic weight goals. For example, you might set out to lose 30 pounds in one year and then lose 20 pounds in another year, and then lose 25 pounds within that year.

Ex Output:
C


Ex Input:
. four bikers at the start of the line <sep> (A) get no a jump. (B) are wearing different colors of uniforms and helmets, they are about to get start the race. (C) leave and race towards a parking lot on the right. (D) go on the parallel bars but they can't take off their bikes.

Ex Output:
B


Ex Input:
[header] How to keep your children and teens safe online [title] Place computers with internet access in a central location in the home. [step] When computers are in a central location, they can be easily monitored, but if placed in private places such as bedrooms, children can quickly close inappropriate websites when they hear their parents coming. [title] Get rid of the webcam. <sep> (A) [step] It might seem like a last resort because it will easily block access to your online box. It might also cause your child to constantly check out your internet identity and send unwanted notifications. (B) [step] Make sure all the webcam knobs are securely locked. [title] Disable video and picture uploads. (C) [step] Webcams can be a great way to communicate with your friends and family, but leaving a teen unsupervised with a webcam can lead to your child's strip show debut. [title] Decide what online activities are age appropriate. (D) [step] If a webcam is easily accessed in your home, don't allow your children and teens to use it. Inappropriate viewing may result in your children being caught.

Ex Output:

C