It can be inferred from the last paragraph that______.A．very few artists can be good busin

It can be inferred from the last paragraph that______.

A．very few artists can be good businessmen

B．Watkins"s works were recognized when he was alive

C．it was difficult to preserve the glass negatives

D．photography does harm to one"s eyesight

请帮忙给出正确答案和分析，谢谢！