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 clean a vornado fan [title] Clean out dust in the outer grills using a vacuum cleaner brush. [step] You can use a brush attachment on a vacuum cleaner to clean out all of the dust from the outer grills. Make sure the fan is unplugged before vacuuming. <sep> (A) [title] Place a cleaning rod in each section of the fan and squirt some cleaning fluid through each rod. [step] Avoid getting any grease in the vents or rest tray. (B) Some of the cleaner should be removed from the outside if you use a cloth and brush as cleaning instructions are laid out in the manual. [substeps] Avoid cleaning the outer grills with dust because it can detach some of the insulation and contribute to the fan's cooling. (C) Wipe down the inside of the cover every few minutes so you can put the fan back together. [substeps] For maximum efficiency, you should wash your vornado fan at least once a month, which is right after each dry run. (D) Go slowly when vacuuming to ensure you clean out as much dust as possible. [substeps] This will only clean the outer part of the fan, not the inside blades.
answer:
D

question:
They show the kind of fish they have found as they lay it out on the frozen ground. One of the men cleans the fish scales. then they <sep> (A) feed the fish he just caught. (B) cut the fish into small pieces and clean them up outside their garage. (C) cut up some malachite, which they trims up and likes. (D) use a polka dot brush to clean the scales.
answer:
B

question:
[header] How to live with breast cancer [title] Discuss your prognosis with your doctor. [step] Once you have been diagnosed, you should sit down with your doctor and determine which stage your cancer is in. You can have stage 1, stage 2, stage 3, stage 4, or stage 5 breast cancer. <sep> (A) Discuss the possibilities of your cancer with your doctor. [substeps] A good start to consult your doctor is to ask questions about what your specific stage of breast cancer is. (B) You can experience stage 3 and stage 5 every day, but this is the most common age for breast cancer. During your surgery, you will need to be pregnant but not breastfeeding, which will prevent you from breastfeeding. (C) Stage 1 means the cancer is limited to just 1 breast and stage 5 means the cancer has spread to other organs or areas of your body at a rapid rate. The stage of your breast cancer, as well as your medical history, will determine your treatment options. (D) You can discuss your healthcare plan with your doctor. [substeps] This is an updated list of age determining whether or not you are considered healthy and who you may be affected by your illness.
answer:
C