LACONIC:

A． unappealing
B． improbable
C． impenitent
D． inappropriate
E． painful

A． illustrate that relativity theory remains a useful tool in determining the topology of the universe
B． indicate a descriptive advantage that toruses might have over Euclidean or hyperbolic universes
C． argue that empirical methods of determining the shape of the universe are invariably doomed to failure
D． suggest that the common sense behind the notion that the universe is simply- connected may be misguided
E． assert that two models of the geometry of the universe may vary in terms of observable predictions but be mathematically equivalent