Which Statement About Essure Is Untrue

Which statement about Essure is untrue?

A) Essure is a spring-like device that is threaded into the Fallopian tubes to block fertilization.
B) Since Essure relies on the body's tissue to grow around the device, it generally takes about three months before it is effective.
C) Essure is considered a reversible method of female sterilization.
D) There have been many complaints about pain and abnormal bleeding caused by Essure.