Definition: 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 help songbirds in winter [title] Help by making a decision to put out bird food regularly. [step] In particular, when the winter weather is very severe, be sure to leave food out for the birds. Be especially attentive after storms, when the birds will probably have been unable to find feed until the storm passes. <sep> (A) [title] Keep birds away from the farm buildings. [step] Buildings such as cottage buildings and sheds are always problematic, as there may be feeders already in the building. (B) If birds get hungry during the rainy season, they will probably take something from you. However, always check on the birds regularly and cut their meals short or eliminate the food source from your fridge or pantry. (C) [substeps] If possible, feeding first thing in the morning and late afternoon can help the birds restore energy when it's most needed. Position feeders where the birds can find them easily and can keep an eye out for any possible dangers. (D) [title] Put in lots of hay during the winter. [step] Birds don't like to be around old stuff, hence the first ingredient in their diet is hay.
Output:
C