Which of the following italicized parts is NOT used as a nominal substitute？A．Was G. Frank

Which of the following italicized parts is NOT used as a nominal substitute？

A．Was G. Frank a great editor？ It has been customary to regard him as such.

B．Please send more of your latest samples, if such are still available.

C．No such books are still available.

D．Some reactions to the proposal may be hostile, but there will surely not be many such？

请帮忙给出正确答案和分析，谢谢！