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 tell the difference between different types of plant fertilizers [title] Use soluble fertilizer when you want to water in the fertilizer. [step] This fertilizer is usually added to the watering can. [substeps] This is best for helping boost growth when its growing season and for frequently fed container plants. <sep> (A) In the summer break, try adding two or three inches of food to fill the watering can-too much fertilizer will kick in when the corn is thirsty, too little will only keep it growing. Plan it out in a bucket or basin for easy irrigation. (B) [title] Use a hose to water a potted plant after planting. [step] Water a cactus when they get too hot for watering. (C) Leaves that don't bond and stink up the water are also large fertilizer that needs to be added to your watering can. [title] Use different types of fertilizer. (D) [title] Use granular fertilizer when you need to supply a concentrated amount of nutrients. [step] A plant may be lacking in a particular nutrient (this will be evident through such things as yellow leaves, , etc.

Ex Output:
D


Ex Input:
The boy watches his mom vacuum as he jumps on the bed. The boy then lays down on the bed as he sees his mother finish the job. then the boy <sep> (A) shows his stomach as she vacuums the bed. (B) plays the accordion and pans the camera to his dad playing the accorion. (C) plays with some toys and walk down a street as he looks at a lot of houses. (D) gets off the bed and jumps down to the ground to look under the bedside table.

Ex Output:
D


Ex Input:
[header] How to make barbecue chicken mac and cheese [title] Clean the chicken with baking soda and vinegar. [step] Place the chicken breast into a large bowl and sprinkle about ¼ cup of baking soda on it. Then pour about a cup of vinegar into the bowl and mix it all up. <sep> (A) After doing this, stir in 1 tbsp of salt and 1 tbsp of pepper. Let the chicken rest on the spoon for about 10 minutes so it has a chance to soak up that bubbly liquid. (B) [substeps] Leave the mixture to soak for 1 hour. Then stir the chicken again and let it sit for another hour. (C) This will soak up any excess on the pan and your dish. [substeps] You may want to water your chicken after you wash it so the food is thoroughly moist. (D) [title] Drain the liquid and rinse the chicken with cold water until it is clean. [step] Take the chicken from the bowl and put it onto your cutting board.

Ex Output:

D