There were several major factors that led to stalemate in the trenches, but the best options from the list are "Defensive weapons were better than offensive ones.
<span>and Trenches were designed for defense."</span>
If this is a true or false question, yes this is true since information of the periods of time in the A.D. era are still not 100% accurate, and there's many questions regarding the actual events leading up to others, and questions about specific resources/items that were able to be recovered FROM those time periods.
Answer: Gold and silver were easier for Europeans to produce than manufactured goods
Explanation: C. Region A