单选题 Pregnant women are advised to take a______, balanced, and varied diet that contains plenty of nutrients from fresh fruits, vegetables, while grains, legumes, and fish.
【正确答案】 A
【答案解析】解析：本题考查句意。wholesome“健康的”，gradual“逐渐的”，well-cooked“烹制熟的”，delicious“好吃的”，根据句意，wholesome是最佳答案。