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". 

A man demonstrates how to walk across and navigate a slackline in a grass courtyard in front of apartments. the man <sep> (A) demonstrates how to traverse a low brick fence on a residential street. (B) walks slowly across the slackline while talking and stopping to talk to passerbys. (C) stands on a slackline balancing himself with his arms before the clip cuts to him interviewing. (D) poles backward, glasses on and he begins to walk while holding the slackline while walking across the courtyard.
C

[header] How to use a vanilla bean [title] Split the pod if you want to use the seeds. [step] If you are planning to use the vanilla bean in a batter for a cake or for a batch of cookies, you will need to open the vanilla bean pod and remove the seeds. You will then add the seeds to the batter to infuse it with a natural vanilla flavor. <sep> (A) [substeps] [substeps] Wait a few minutes before parting the pod or moving it to a serving dish. Being too cold will crush the seeds as they break into the batter. (B) [substeps] Removing the seeds can make it easier to infuse the pod with a natural vanilla flavor. A good rule of thumb is to reserve about ½ cup (100 g) of pod before you can drink the rest. (C) [substeps] Keep in mind that you will not be able to extract the seeds directly from the pod if you plan to use it. Instead, you will be mixing the seeds into the flour. (D) [substeps] To split the pod, lay the vanilla bean pod on top of a clean, dry cutting board. Turn the hooked end of the vanilla bean to the top of the board.
D

[header] How to prevent cats from jumping on counters [title] Create your own environmental punishers. [step] Environmental punishers-also called " remote correction "-involve disciplining the cats without being present yourself, so the cats don't link the punishment to you. If you punish your cats for jumping on off-limits surfaces yourself, they will learn to keep off counters only when you're at home. <sep> (A) One of the biggest drawbacks of this discipline is that there's no need to threaten to do so, as cats are sensitive to threats. Call the police if you think your cats may jump on counters. (B) [substeps] Block off any way the cats can jump. For instance, you can use a cat flap to block off both getting and jumping off counters. (C) If you do want to punish the cats, cut off access to any windows, doors, and other places that don't require your attention. Give them scary scares when you're home. (D) You can create some devices for remote correction yourself, but never create a deterrent that might hurt your cat (s). [title] Place light baking sheets at the counter's edge.

D