Antonym for delicate => <span>d. robust ....
Hope it helps !!!!</span>
<span>The correct answer is simile. The simile, as its name implies, highlights similarities between two things in a quick comparison. It is helpful when an author needs to explain something that the audience may not understand. They can compare to some thing that the audience does (should) understand.</span>
The rainbow at the end of "The Fish" is the most likely a symbol of A RAINBOW TROUT.
I'm not a 100% sure, but I hope this helps. (^_^)