During vaginal examination of Janna who is in labor, the presenting part is at station plus two. Nurse, correctly interprets it as:

Presenting part is 2 cm above the plane of the ischial spines.Biparietal diameter is at the level of the ischial spines. Presenting part in 2 cm below the plane of the ischial spines.Biparietal diameter is 2 cm above the ischial spines.

Explanation.

Fetus at station plus two indicates that the presenting part is 2 cm below the plane of the ischial spines.