2. Proposition 1: In a rectangular prism, there must exist a point that is equidistant from all vertices;
Proposition 2: In a rectangular prism, there must exist a point that is equidistant from all edges;
Proposition 3: In a rectangular prism, there must exist a point that is equidistant from all faces;

Among the above two propositions, the correct ones are
(A) 0
(B) 1
(C) 2
(D) 3
(B)
2.【Analysis and Solution】Since the distance from the center of the cuboid to each vertex is equal, Proposition 1 is correct. For Proposition 2 and Proposition 3, in a general cuboid (except for a cube), there does not exist a point that is equidistant from all edges, nor does there exist a point that is equidistant from all faces. Therefore, only Proposition 1 is correct in this problem, so the answer is B.