Why has the dark thing partially blocked the children's view of earth?
a.
the mrs. w's allowed the dark thing to threaten earth.

b.
the dark thing partially obscures all things that the happy medium shows the children.

c.
people on earth have turned evil since the children left.

d.
too few people are living lives centered around love, truth, and the passionate pursuit of knowledge.

emerson essentially believes that traveling is overrated. he supports this perspective through an initial focus on "the idea" of places like italy, england, and egypt, and the fascination of "educated americans" with them. he argues that those places only took on the grand, majestic ideas that they represent because "they who made england, italy, or greece venerable in the imagination did so by sticking fast where they were, like an axis of the earth." yes, those places are grand, but only because they so clearly represent the places that they are. the art and culture of italy, england, and egypt is authentic, and therefore significant.

plz mark brainliest