Which sentence from the Introduction [paragraphs 1-3] BEST explains how 3D printing works?
(A) The statues will be on display in the Smithsonian Gardens and in certain Smithsonian museums from March 5th to 27th.
(B) Each statue was created using three-dimensional (3D) printing.
(C) This is a process that uses a machine to form there-dimensional objects from digital files.
(D) The display is "the largest collection of statues of women ever assembled together."