Answer:
You should say was instead of were. The herd was not unwilling to cross the road in front of the truck.
Explanation
The third option is the correct one - "it tells a moral tale that is at odds with the pardoner's own persona".
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At the auction, I bid on the antique dresser. This is the answer because it has a subject (I) and verb (bid), whereas the top answer choice needs to say “is leaving”