OG12 98题，正确答案是A。
请问，其中的their，they，they分别指代什么，是 Clovis points还是spear points？ 这句话怎么翻译阿？ 谢谢！
Even though Clovis points, spear points with
longitudinal grooves chipped onto their faces, have
been found all over North America, they are named for
the New Mexico site where they were ? rst discovered
in 1932.
(A) Even though Clovis points, spear points with
longitudinal grooves chipped onto their faces,
have been found all over North America, they
are named for the New Mexico site where they
were ? rst discovered in 1932.
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