France produces wine and tractors. If, given the same resources, France can increase production of wine and tractors, at the same time, then France A: is producing outside his Production Possibility Frontier B: is has achieved technological advancement in the production of kola and cashew nuts C: is producing on its Production Possibility Frontier D: is producing inside its Production Possibility Frontier

A—Chicken with Cashew Nuts B—Chicken with BroccoliC—Chicken with Fresh Mushrooms D—Double Sauteed PorkE—Sweet and Sour Chicken or Pork F—Beef with BroccoliG—Shredded Pork with Peking Style H—Beef Sauteed Szechuan StyleI—Chicken and Shrimp Combination J—Vegetable DelightK—BabeShrimp with Garlic Sauce L—Baby Shrimp with Hot Chili SauceM—Baby Shrimp with Dried Red Pepper N—Fried Chicken WingsO—Roast Pork with Cabbage P—Shredded Pork with Garlic Sauce （）素什锦（）炸鸡翅