Step 1: This is a negative-stem question. Three options are absolute contraindications; pick the one that is not.
Step 2: Absolute contraindications for an IUD include suspected or confirmed pregnancy, current pelvic inflammatory disease, undiagnosed vaginal bleeding, cancer of the cervix or uterus or adnexa, and previous ectopic pregnancy. In these situations an IUD is never inserted.
Step 3: Distortion of the uterine cavity from a congenital malformation or fibroid is a relative contraindication, not absolute. The device may simply not sit or work well, so it is avoided where possible but is not an absolute bar in the way active infection or pregnancy is.
Therefore uterine malformation is the exception. Ref: Park's PSM.