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The correct answer is B.

OBJ-2.7: Both hardware and software write blockers are designed to ensure that forensic software and tools cannot change a drive inadvertently by accessing it. But, since the question indicates that you need to choose the BEST solution to protect the drive’s contents from being changed during analysis, you should pick the hardware write blocker. A hardware write blocker’s primary purpose is to intercept and prevent (or ‘block’) any modifying command operation from ever reaching the storage device. A forensic drive duplicator copies a drive and validates that it matches the original drive but cannot be used by itself during analysis. A degausser is used to wipe magnetic media. Therefore, it should not be used on the drive since it would erase the hard drive contents.

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