15. The author most likely includes the example of Santos Dumont's flights in 1906 to:
Your Answer is
Correct Answer is A
Explanation
Positioning word 1906, positioning to line 67 of the original text. By context lines 69-72, the disregard for a key requirement of flight was so pervasive that it took Europeans more than one year to figure out how to land. This is the hindering effect of the wrong paradigm on aircraft development.