Answer: “staff at Yosemite National Park report that an increase in visitors has led to problems such as smog and trail erosion.”
Explanation:
This answer gives the most relevant evidence to support the author’s claim, as well as being from a “reliable” source.
I would think <span>c)both a and b are correct </span>
It should be B. Hope this helped
C) verbs and adverb phrases
