What makes Bitlocker encryption difficult to break? a. This is a trick question because Bitlocker is actually relatively easy to crack since it uses the LM hash b. It requires passwords that are at least 12 characters in length c. Bitlocker requires the use of a hardware device such as a TPM or Smart Card to store the encryption keys. d. It relies on biometrics such as finger print or retinal scans e. None of the above