Suppose a White Dwarf Is Gaining Mass Because of Accretion

Multiple Choice

Suppose a white dwarf is gaining mass because of accretion from a binary companion. What happens if its mass reaches the 1.4 solar mass limit?

A) The white dwarf immediately collapses into a black hole, disappearing from view.
B) The white dwarf undergoes a collapse and expels the excess mass in a nova eruption.
C) A white dwarf can never gain enough mass to reach the limit because a strong stellar wind prevents the accreting material from reaching it in the first place.
D) The white dwarf (which is made mostly of carbon) suddenly detonates carbon fusion and this creates a white dwarf supernova explosion.