What can be inferred about the impact of the controversy in paragraph 1?
A. It can be inferred that, without the controversy,
John Muir would have written less about national parks
B. It can be inferred that, without the controversy,
legislators would not have had an effective publicity campaign
C. It can be inferred that, without the controversy,
more alternatives to the reservoir would have been considered
D. It can be inferred that, without the controversy,
the National Park Service may not have been established
