You Are Approaching a House Owned by the Friend of Someone

Multiple Choice

You are approaching a house owned by the friend of someone you know just caused a hit -and-run accident.The friend is out on the porch,and you ask him if you can enter the house and look for the suspect.He says yes,and you find the suspect.The suspect's attorney argues that you did not have a warrant,but the judge allows it.What is this an example of?

A) Searches incident to arrest
B) Searches based on exigent circumstances
C) Plain-view searches
D) Consent searches