You will be given a definition of a task first, then some input of the task.
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".

[header] How to assess the advantages of hydroponic gardening for your needs [title] Be prepared for an initial outlay and then lower costs to run it. [step] Once you are ready with your initial set up, running costs are around 20 percent lower. [title] Expect to be able to grow more plants in less space. <sep> (A) [step] It would make too much difference to determine whether the grass near your garden drains faster or the area seems to benefit from shade, do this without thinking of more resources. [title] Plant your herbs and vegetables in the fall. (B) [step] This will help you to minimize costs when necessary as well as to help prove that your hydroponic garden is sustainable enough for plant development. [title] Search the us and canada for a hydroponic development department. (C) [step] Expect gardening to last a year or more if you plant plants in your home. [substeps] Start by purchasing nitrogen-rich plants. (D) [step] You can grow more plants into a smaller area with indoor hydroponics gardening. This is despite your actual plants being larger, the roots are smaller as they don't need to expand to find nutrients.
Output:
D