Instructions: 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".
Input: [header] How to poach an egg using a microwave [title] Get a microwave safe mug and lid. [step] Most plastic, glass, or ceramic mugs and lids will say " microwave safe " on the bottom. Use a mug and lid that specifically says microwave safe. <sep> (A) It's acceptable for very big eggs to be too small to cook in the microwave. [title] Heat up the microwave for about 30 seconds. (B) [substeps] Pan-bottom mugs will not be the best cup. The rings on top are more likely to leak than the ones on top. (C) Avoid giving the mug a lid, since you will heat the egg without the lid. [title] Heat the egg in a microwave safe skillet with the lid on. (D) Do not use metal materials or foil in the microwave. [title] Fill the microwave safe mug with cup of water.
Output:
D