I believe the answer would be C. They allowed for much stronger and more durable weapons.
<span>The end of Renaissance period fostered the Scientific Revolution. The invention of navigational devices such as the astrolabe, caravel, and magnetic compass led to technological improvements. It increased world exploration, which improved economic conditions and transformed the society's perspective on nature.</span>
The answer to the first unknown is "3 or more" while in the second unknown is "no more than two". Hence, we have the complete sentence as in the year 1930's of Americans who were polled reported that the ideal number of children was 3 or more. While in the year 1990's, Americans who were polled reported that the ideal number of children to have is no more than two.
The four characterizing changes in retailing and advertising in the second half of the 19th century were the following:
Durable goods
Targeted towards woman
Stylish cars
and Advertising fueled consumer spending.
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