What Did the 1998 Spacecraft Mars Orbiter Find When It

What did the 1998 spacecraft Mars Orbiter find when it looked at the "face" on Mars?

A) The orbiter found that the face had two noses, showing that it had been carved by a nonhuman sculptor.
B) The orbiter found that the shifting sands had uncovered two other, smaller faces on either side of it.
C) The orbiter found nothing-the face and the rocks around it were either gone or buried by sand.
D) The orbiter showed the face to be a natural rock formation.