Bunuel,
chetan2u,
I came across of this question in DS Challenge Set of Gmat Hacks and there the answer is E. Below is explanation.
Explanation: To find the distance of a line from B to the center of the trees
base, we would need to create some kind of figure, probably a triangle, that
included that line, and know something useful (like the angle measures) of that
triangle. Statement (1) doesnt tell us anything relevant to that distance, so
it is insufficient. Statement (2) is also irrelevant it doesnt help us find any
measures of the circle, such as the radius, that might help us. Taken together,
the statements are still not enough. We only know the length of one line, and
as we dont know the distance from C to the edge of the circle, we cant use
that length to determine the radius of the circle.
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