TOEFL Listening: ETS-TOEFL听力机经 - 48B52D_YHG4KV905P$

Why does the professor mention parasitic spiders? A. To point out that golden orb weavers prey on other spiders B. To answer a student's question about a type of web design C. To clarify a point about golden orb weavers' defense strategies D. To identify a type of spider that uses other spiders' webs to catch prey