Answer:
The sentence that is punctuated correctly is sentence d.
Explanation:
Not only does it sound right when you physically say it, but it is grammatically correct. Looking at the other sentences, you can see how in a, there are no commas after rain. In b, there are too many commas. In c, there shouldn't have been a comma before and. Therefore, the only logical response would be d.
This question is really about your opinion and what you think. But if it were me i would pick c.
Your answer would prolly have to be D.
True they also have done electrical gadgets,nanotechnology
A symbol of plenty consisting of a goat's horn overflowing with flowers, fruit, and corn