Option A (DMEM) is the correct answer. The context describes animal cell culture media as nutrient media containing vitamins, amino acids, glucose, inorganic salts, serum, and hormones for proper in vitro culture of animal cells. DMEM (Dulbecco's Modified Eagle Medium) is a synthetic/artificial medium specifically formulated for animal cell culture that contains these essential components. MS media is used for plant tissue culture, and LB Media is used for bacterial culture, making them incorrect choices for animal cell culture media.