In a Research Study,participants Were Shown Images with Houses Superimposed

In a research study,participants were shown images with houses superimposed on faces and asked whether they saw a house or a face.When they looked at the participants' brain responses during this task,what did they find?

A) Brain activity changed depending on whether they said they saw a house or a face.
B) Brain activity was the same, regardless of whether they said they saw a house or a face.
C) Their brains emitted large, slow-wave activity equally for both images.
D) Their brains had activity in two regions, indicating that they saw both the house and the face.