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:
Young boy talks to camera in front of drum set in a studio. young boy <sep> (A) plays on the drum set, and the cymbals, while intermittently speaking to the camera. (B) starts taking steps standing on a pedal holding a tool an trying to play an instrument. (C) drum set talk to camera and hold a dummy and cymbals. (D) starts unpacking drum set drum set as the camera captures his movements.

Ex Output:
A

Ex Input:
One the window is wet, he takes the razor like stick and drags it up and down getting the water off. after the two top windows <sep> (A) are complete, he leaves the other two untouched and walks away. (B) are clean, he grabs the straightener and begins removing the weeds that are stuck all over the car. (C) , there is a large front garden that has dirt and leaves turning a brown color. (D) he touches the first two windows, the one on top is hand chopped.

Ex Output:
A

Ex Input:
[header] How to make stuffed zucchini [title] Preheat your oven to 350f (175c). [title] Cook the beef. [step] Place some olive oil on a skillet and cook and stir the ground beef until it's nice and browned, for about 10 minutes. <sep> (A) [substeps] The stir-fry should reach a depth of 520 degrees fahrenheit (40f). Or, if you live in a hotter area, light ten minutes at a time and cook until hot enough to fry. (B) [title] Lay the zucchini with the olive oil on top of the beef. [step] Spread it out so that it's raised up a little bit, if you want a bit of firmness. (C) You can break up the beef as it crumbles while it cooks. Drain the extra fat from the beef and move it to a mixing bowl, using a slotted spoon. (D) [title] Drain the beef and transfer it to a serving bowl. [step] If you like, you can sprinkle the meat with finely chopped, fresh garlic cloves or tomato sticks.

Ex Output:
C