Redox reactions questions

Ascorbic acid (C${}_6$‍H${}_8$‍O${}_6$‍) is a common antioxidant that protects our bodies against radicals. In the redox equation below that occurs in our stomach, which of the following pairs identifies the reducing and oxidizing agents, respectively?

C${}_6$‍H${}_8$‍O${}_6$‍ + $$‍2H${}^{\text{+}}$‍ + 2NO${}_2$‍${}^{\text{−}}$‍ → C${}_6$‍H${}_6$‍O${}_6$‍ + 2H${}_2$‍O + 2NO