Answer:
d.the cell phone cannot be searched in most circumstances without a warrant.
Explanation:
Over the past few years, there has been concern about the right of an individual living in the US and their privacy right. When the constitution was established, there was a section called the 4th Amendment which helps to establish the right of every US Citizens.
Over the course of years, there has been reasons to search the phones of suspect which has ended up in the law court with the suspect trying to uphold their fundamental human right. In the 2014 cases, on the legality of searching a suspect's phone, It was established that there must be a warrant in most circumstances before such could be done.
The supreme court refused to grant the officers the absolute right to search suspects phones in all cases.