June is a district attorney. One of the police officers she works with told her that he searched a residence without a search warrant. Which of the following reasons makes this search legal?
A. The officer told the resident she had no choice so she allowed the officer inside.
B. The resident was not the legal owner of the house so the officer did not need permission to enter.
C. There were pills clearly visible on the table but the officer was not sure if they were illegal drugs.
D. The officer heard someone call for help inside the residence. ​