Detailed 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".
Q: [header] How to tell the difference between subtle, subtly and subtlety [title] Use subtle as an adjective. [step] The word " subtle " describes a noun that is difficult to notice or understand. Here are a few example sentences : [substeps] The dresses are all wonderful, but their colours have subtle differences between them. <sep> (A) The styles make a certain little detail about a dress the absolute perfect balance between subtle and intermediate. [title] Use subtle as an adjective when referring to a color. (B) The colour blue is a couple of shades darker than blue. The bridal gowns are all amazing in colour, and the bridal dresses look lovely in them. (C) The colours appear to be a very subtle shade of black that contrasts with each other like a murky green. The color is so subtle that it cuts through through everything the whole evening. (D) My mother's warning glance was a subtle hint that i should change the topic. The painting looks drab at first, but there is a subtle beauty in the pattern of brushstrokes.
A:
D