in the early twentieth century,the "Model T"authmobile was mass produced and sold at a price__could afford.
问题描述：
in the early twentieth century,the "Model T"authmobile was mass produced and sold at a price__could afford.
a the average person who b that the aberage person who
c and the average person d the average person
答
d the average person
在二十世纪早期,“T型“汽车被大量生产和出售,它的价格,是普通人可以接受的.
a price (that /which) the average person could afford.
从翻译可知:是个定语从句,(that /which) 可以省略.