The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The 3 embryonic germ layers: ectoderm, mesoderm and endoderm are derived from:   (A) Epiblast only   (B) Ectoderm from epiblast; mesoderm and endoderm from hypoblast   (C) Ectoderm and mesoderm from epiblast; endoderm from hypoblast   (D) Hypoblast only
['(A) Epiblast only <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Epiblast only \n (B) Ectoderm from epiblast; mesoderm and endoderm from hypoblast \n (C) Ectoderm and mesoderm from epiblast; endoderm from hypoblast \n (D) Hypoblast only <> possible answers', '  The 3 embryonic germ layers: ectoderm, mesoderm and endoderm are derived from: <> context@']