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石器时代的陶工制作了复杂并且常常是精致的陶瓷水罐、工具和珠宝。他们也制作了粗糙的陶人。有许多这种精致的陶瓷水罐、工具和珠宝被发现时是完整的或者是几乎完整的,然而大致与这些陶器在同时期制作的陶人却大多以小碎片的形式被发现。以下哪项如果正确,能最好地解释为什么很少有陶人被发现是完整的而许多精致的陶器却是完整的?

A.最后修整期间,如果一组陶器中有一个碎了,石器时代的人有时会故意打碎整组的东西,也许是为了避邪。

B.世界各地陶土的成分差别很大,而这种成分又相应地会影响陶器的持久性。

C.陶器是石器时代发明的。人们早在掌握制作精致陶器技术以前就已经精通了制陶技术。

D.许多石器时代的仪式需要打碎陶人,可能是作为对神的祭祀。

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