A nurse notes that the fetus of a client in labor is in a vertex presentation at +1 station. The nurse knows this means the presenting part is at which vaginal exam location?

The presenting part is 1 cm above the ischial spines.

The presenting part is at the level of the ischial spines.

The presenting part is 1 cm below the ischial spines.

The presenting part is entering the pelvic inlet.