To obtain a credential from it's acceptable to have received your training through independent study.

To obtain a credential from  the Child Development Associate  (CDA) training program. it's acceptable to have received your training through independent study.

 The Child Development Associate (CDA) is a National credential awarded to early childhood professionals

i would say b. research typically uses a variety of sources

answer; i do believe that its(gestation,suction-aspiration or vacuum aspiration;