Yes! The tense has to stay consistent throughout the sentence! ;)
Either
The overpopulation problem is so dire that selecting some humans to be a food source is a just solution.
Or
There are no reasonable objections to the author's proposal.
Answer:
He did hot have a gold ringchange
Explanation:
to change this kind of sentance, simply add 'did not have' or 'did have' hope this helps, have a good day.
First person , The text says I and me multiple times