By saying "spending of any sort became deeply unfashionable" （Line 1 -2, Para. 3) , the a

By saying "spending of any sort became deeply unfashionable" (Line 1 -2, Para. 3) , the author suggests that_________.

A．collectors were no longer actively involved in art-market auctions

B．people stopped every kind of spending and stayed away from galleries

C．art collection as a fashion had lost its appeal to a great extent

D．works of art in general had gone out of fashion so they were not worth buying