. He advised the fanners to choose the best seed-heads, ____ that had the best color.

95. He advised the fanners to choose the best seed-heads, ____ that had the best color.
A. the one B. the ones C. one D. ones

A与B区别？为什么选B？

区别就是单复数呗
the ones 在这里 正好对应前面的the best seed-heads, 名词的复数形式 后边的代词 自然是用复数的 the ones

d 不定代词one是泛指，相当于a/an + 名词，ones相当于复数，特指时需要加the，句意：他建议农民选择最好的种子，有最好颜色的种子。横线后面为定语从句，应是特指，所以用the ones，ones指seed-heads，故选d。