Carly Took an Early Pregnancy Test Yesterday and Was Thrilled

Multiple Choice

Carly took an early pregnancy test yesterday and was thrilled when it was positive. She is excited about having a baby, and the first thing she asks you this morning is "When is the baby due?" When you ask, she tells you that the first day of her last menstrual period was September 9, 2012. What is the estimated date of Carly's estimated delivery date?

A) August 14, 2013
B) July 25, 2013
C) July 1, 2013
D) June 16, 2013
E) June 9, 2013