Identify A, B, C, D, E and F in order in the picture - choose the appropriate option :

Question

( a ) Umbilial vessels, Placental villi, Cavity of the uterus, Amniotic sac, Embryo, mucus in cervix
( b ) Umbilial vessels, Placental villi, Cavity of the uterus, Yolk sac, Embryo, mucus in cervix
( c ) Umbilial cord with its vessels, Placental villi, Cavity of the uterus, Yolk sac, Embryo, Plug of mucus in cervix
( d ) Umbilial cord, Placental villi, Cavity of the uterus, Amniotic sac, Embryo, mucus