Under Which of the Following Circumstances Would the Government's Search

Multiple Choice

Under which of the following circumstances would the government's search be considered "unreasonable" under the Fourth Amendment?

A) Searching digital information on a cell phone with a warrant.
B) Using a drug sniffing dog during a routine traffic stop with a warrant.
C) Using a drug sniffing dog during a routine traffic stop without a warrant.
D) Bringing a drug sniffing dog into someone's private home with a warrant.
E) Bringing a drug sniffing dog onto someone's front porch without a warrant.