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". 

[header] How to reuse [title] Don't recycle your next empty jug of milk. [step] Poke holes in the top of the lid. Then, fill it with water, screw the lid on and use it as a watering can. <sep> (A) [title] Use less using jugs than you think you need to. [step] Often, items such as juices, sterilizers and acids recycle too fast; try using the one they own when they need to remove something bad. (B) [substeps] Remember to refrigerate milk jugs without lids. Make sure that the lid isn't too tightly lined, you will need it for your construction projects. (C) [title] Save a large square egg crate, like the ones you find in bulk stores. [step] Set it on your desk and place your laptop on top. (D) This is what you use to water your plants while reusing the container. [substeps] Other containers made specifically for reusing the milk jug can be used instead.
C

[header] How to effectively use email at work [title] Allocate specific times of the day to read and respond to your e-mail. [step] If you don't stay in control of checking your e-mail, you may end up wasting too much of your work day checking it. Try to respond to emails immediately. <sep> (A) While you can use your email system to get more emails, remember to adjust your work email usage to accommodate any change in time. [substeps] Use social media to check your e-mail and read your e-mail. (B) [title] Organize your email whenever you are in it. [step] Effective use of work email includes deleting emails you know you won't need as you read them and filing those that you will need in specified folders. (C) Staying in control of your personal email should be your top defense when handling an in-office correspondence. [title] Identify your e-mail's subject line. (D) Or try to set an automatic schedule to read them at other times. [substeps] Plan to read at least once a day, unless you work on a busy schedule.
B

[header] How to roast corn [title] Husk the corn. [step] This means removing the green shell and silky bits. [title] Wash the ear to remove any remaining pesticides or bugs. <sep> (A) [step] Be sure to rinse with a clean cloth to remove any debris from the shell. [title] Heat the corn on medium flame of the grill for about 15 minutes, until the corn is turned a bright golden or green color. (B) [step] First, rinse the ear under cool, running water. Then remove the outer shell, weighing down the corn to help keep it separated from the flesh. (C) [step] Watch out for earwigs, which sometimes set up residence inside the corn. [title] Heat up the oven to 400ºf/200ºc. (D) [title] Place the corn on a plate lined with aluminum foil or wax paper and cool it. [step] Enjoy! [title] Treat the corn with one spoonful of butter, the type you're using for tenderloin.

C