Which Statement Concerning Time Limitations on the Forensic Examination Phase

Which statement concerning time limitations on the forensic examination phase of electronically stored information is correct?

A) The police are only allowed 10 days to extract the evidence.
B) The time period allowed to obtain the evidence is the same for forensic searches and more traditional searches.
C) Law enforcement is allowed a shorter time period to obtain the evidence than normally allowed under a traditional search warrant.
D) Rule 41 does not require magistrates to specify a time limit because the amount of time is unpredictable.