instruction:
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". 
question:
[header] How to choose a protein supplement [title] Choose whey protein to build muscle. [step] If you're looking for muscle-building protein, whey protein is generally your best option. Whey protein can come in the form of powder or pills and is commonly used when people are trying to build muscle via things like weight training programs. <sep> (A) By doing this, you're gaining more body fat and growing more muscle at the same time. [substeps] Whey protein can be found in half of the packaged foods. (B) Whey protein is also a low-fat protein, rich in red blood cells from bacteria. Although whey protein does not impart healthy fats to the body, whey protein helps build muscle, which you can grow and burn through exercise. (C) [substeps] Look for a whey protein powder or supplement with a high biological value. This measures how well your body can absorb the protein. (D) Whey protein occurs as a food chain, hence the slogan, " protein is fat free ". [substeps] Whey protein is complex and varies from patient to patient.
answer:
C


question:
[header] How to dry out wet currency [title] Find a dry space. [step] Make sure the bills are kept in a room with good air circulation to lessen the time it takes for the bills to dry. Keep the bills in an area where they won't get blown away or easily lost. <sep> (A) [substeps] At home, you will be able to air dry your currency if your bills stay wet. [title] Store your currencies in a dark, dry place. (B) Avoid putting the bills near open air vents or next to tight crevices where the bills could fall. Try arranging them on the edge of a sink so the water will drip to the ground. (C) Good air circulation should not damage the bills, but it shouldn't be expensive either. [title] Make sure the area is clear of wet or air-logged fabric or paper. (D) [title] Keep your bank account secure if possible. [step] Also, to help the currency from drying out, make sure the extra cash is well hidden in the bank so it isn't moved quickly to prevent the contents from spoiling or breaking up in transit.
answer:
B


question:
[header] How to install openelec on a raspberry pi [title] Gather your supplies. [step] It is not needed and will take up more space then needed to on your microsd card. The only thing you should have checked will be openelec _ pi2. <sep> (A) [substeps] This installation involves taking out your original usb fuse and adding d-pad to your pc. Then getting back together with the mads it's no use trying to plug stuff back in later, just back up all the wires and turn it off. (B) Do not pick openelec _ pi1; this is the older version and may not be compatible. [title] Download sd formatter from https: // www.sdcard. (C) It is a nicely built millisd disk capable of consuming a huge amount of data in one day. You can keep it with you even if you don't have it yet. (D) That is all you'll need to use to start with. It is also extremely important to have openelec _ pi2's on your sd card, just in case it slips out and problems your pc.
answer:

B