The discovery of glass being expandable and able to be shaped by human breath revolutionized glass working to such an extent that today "glassblowing" has become the generic term for all glass working, whether the glass is blown or formed by other techniques.

(A) of glass being expandable and able to be
(B) of glass that is capable of expansion and
(C) of glass being capable of expansion and that it can be
(D) that glass can be expanded and it is able to be
(E) that glass can be expanded and


OA E

Source: GMAT Prep