Under 35 U.S.C. § 112(f), what is the requirement for a means-plus-function claim element to be valid and infringed?
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A
The accused device must use the identical structure recited in the specification
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B
The accused device must use the same structure or its equivalent as disclosed in the specification
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C
The claim must recite the specific structure rather than the function performed
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D
The specification must include at least three embodiments of the means