<prompt> The placenta is formed from:Decidua basalisDecidua veraChorion levaeDecidua capsularis  <response>: Ans: A Decidua basalis Ref: DC Dutta s Textbook of obstetrics, 7th edn, Pg 30Explanation:Fetal contribution for placental formation - Chorion frondosumMaternal contribution - Decidua basalts 