STIR together the apricots, preserves, hoisin sauce, and soy sauce in a small bowl. SEASON the pork with salt and pepper. Heat the oil in a large skillet over medium-high heat. Add the pork and cook, stirring, until lightly browned, about 5 minutes. Stir in the apricot mixture. Bring to a boil, reduce the heat to low, cover, and simmer for 10 minutes, or until the pork is cooked through and the sauce is thick. Serve over rice, if using.