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 make iranian bread [title] Mix together the yeast and the lukewarm water, then let stand for 5 minutes. [title] Combine the salt and flour, then add to the yeast and water mixture, mixing everything together thoroughly. [title] Knead the dough until it's very smooth. <sep> (A) [title] Pour the dough into a pre-floured loaf pan. [step] Leave room in the pan for the butter. (B) [title] Cut it into small pieces, form it in a bread bowl, etc. [step] And cover with a bit of water. (C) [step] You can choose to mix it in a standing mixer (which will take about 6-7 minutes), or to knead the dough by hand on a floured surface. [title] Coat the inside of a bowl with about 1 tsp of oil. (D) [title] Cut the dough into the shape of a muffin with the slits cut before fully closing. [title] Place the dough on your prepared muffin tray.

Ex Output:
C


Ex Input:
[header] How to install a bakflip hd tonneau cover on a ford f150 [title] Place the rail of the bakflip hd on right hand side bed rail of the f150. [step] Slide the tonneau rail all the way forward to the bulk head. It is a good idea to have a squeeze clamp or similar to hold it in place. <sep> (A) [title] Slowly turn the bakflip over so it moves slowly, its going to wobble and have to be bent the opposite way of the rail. [step] Be prepared for a lot of bumping. (B) [title] Tightly wrap round tray socket on right hand rail over cover and fasten. [step] Compression disks complete a swivel mounted over rail. (C) [title] Place the included rail clamps in place. [step] Tighten with a wrench or socket. (D) This will prevent the oil from jumping up and down accidentally while the g2 is being painted. [title] Place the nikon bolt assembly inside the couplers cradle.

Ex Output:
C


Ex Input:
[header] How to diagnose respiratory problems in rabbits [title] Look for nasal discharge. [step] The most common respiratory problem is' snuffles ,' a disease that causes upper respiratory tract infections with a nasal discharge. The classic pasteurella infection discharge is a thick, creamy white discharge from the nostrils. <sep> (A) When cut off, the mucus and blood will evaporate out from the nose. If your rabbit's nose discharge feels light, pale pink, tender to the touch, or has a yellowish pallor, it is very likely fungus. (B) The discharge from the nose is yellow or reddish in color. It does not appear bloody, warm to the touch, or foul smelling. (C) [substeps] Your rabbit may wipe away this discharge with a cotton ball. If this mucus secrets from the nose, get it tested. (D) However the discharge can be anything from watery to white to yellow. [substeps] Pasteurella is so commonly a cause of ill health because many rabbits have it in their respiratory tract as a normal inhabitant.

Ex Output:

D