D
a
c
b
d
I think this is correct. I don't know honestly.
Answer:
It has to do with voicing assimilation (voiced sounds vs, unvoiced sounds at the end of the word stem.) before the suffix is added.
Explanation:
Ex....
'P' is a voiced consonant (with your hand in front of your mouth, you feel a puff of air on your hand), so it's phonologically easier (more natural) to say a '-t' sound immediately afterward.
'N,' in contrast has no puff of air, so it's a voiceless sound.
It changes from melancholy to pleasant.
Hope this helps ya :)
Parallel<span> structure means using the same pattern of words to show that two or more ideas have the same level of importance. This can happen at the word, phrase, or clause level. The usual way to join </span>parallel<span> structures is with the use of coordinating conjunctions such as "and" or "or."</span>