An Officer Stationed Himself in a Hidden Location About Fifty

An officer stationed himself in a hidden location about fifty yards from the suspect's house and with the aid of binoculars watched the activities of the suspect,a known liquor law violator.The officer observed the defendant place two large cardboard boxes containing bottles of untaxed whiskey into his car.The officer's information

A) was lawfully gathered because any aural or visual enhancement is allowed.
B) was not lawfully gathered because he could not see the items without the sight enhancement.
C) was lawfully gathered because the suspect's reasonable expectation of privacy was not invaded.
D) was not lawfully gathered because any aural or visual enhancement is not allowed.