A Woman with a Multiple-Fetus Pregnancy Asks, "What Are the Chances

A woman with a multiple-fetus pregnancy asks, "What are the chances of having an uncomplicated pregnancy?" The nurse's best response is that:

A) The perinatal mortality rate for monoamniotic siblings is 50%.
B) Twins are less likely to have complications than are singleton births.
C) Primiparous women pregnant with twins are less likely to develop complications.
D) Spontaneous abortion is more common with twins.