Read the following paragraphs and answer the question.
Is Google really wrecking our memory? The answer is “it depends.” The Columbia University report doesn’t offer evidence of actual memory diminishing. Instead, the suggestion is that, influenced by Internet and search engine use, our memories are switching job hats and becoming more external. Instead of remembering “ends,” we’re remembering “means.” Search engines like Google are simply becoming extensions of our brains, sort of like wireless electronic devices.
The phrase “job hats” refers to （）.
A.正确答案Dthe original memory banks
B.the roles of search engines
C.the abilities to deal with information
D.the ways of remembering information
