The fetus can be considered viable if the following ossification center appears -: (A) Calcaneum, (B) Manubrium sterni, (C) Lower end of femur, (D) None of the above
Answer is C. Ossification center for lower end femur appears at the end of 9th month of intrauterine life.
For calcaneum and manubrium sterni it appears by the end of 5th month.