EXECRABLE:

A． The second paragraph limits the applicability of the theoretical method described in the first paragraph.
B． The second paragraph provides further elaboration on why an assertion made at the end of the first paragraph proves true in most cases.
C． The second paragraph provides additional information in support of a hypothesis stated in the first paragraph.
D． The second paragraph provides an example of a case in which the assumption described in the first paragraph is warranted.
E． The second paragraph describes a phenomenon that has the same cause as the phenomenon described in the first paragraph.

A． infinite space, by definition, can exist but cannot be observed from an external reference point
B． in order for there to be an outside to the universe, the ultimate physical reality must be a Euclidean planar space
C． one cannot observe the edge of any object, including the universe, except by using a perspective external to it
D． the universe can always be redefined to include what is beyond an absolute reference point
E． the universe is a hypersphere which must be embedded in higher-dimensional space than that given by Euclidean geometry