prep 07 p2-139

鹤源

Taste buds are onion-shaped structureswith between 50 and 100 taste cells, each of them has

fingerlike projections poking through theopening located at the top of the taste bud called the taste

pore.          

(A) them has fingerlike projectionspoking through the opening located at the top of the taste bud

called the taste pore

(B) them that have fingerlike projectionsthat poke through an opening located at the top of the taste

bud, which they call the taste pore

(C) which has fingerlike projectionspoking through the opening, called the taste pore, located at the

top of the taste bud

(D) which having fingerlike projectionsthat poke through an opening, which is called the taste pore,

located at the top of the taste bud

(E) which have fingerlike projectionsthat are poking through an opening located at the top of the

taste bud called the taste pore

想问一下大牛们，C选项中poking......, called......,和located......都是修饰fingerlike projection吗？07版得语法解释中是这样说的。还是有其他的解释否？我理解是poking和called修饰fingerlike projections，located修饰taste pore，不知道正确与否？

求证！多谢各位啦！