The correct option is D Diphtheria, Wooping cough, Tetanus
DPT (also DTP and DTwP) is a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough), and tetanus. The vaccine components include diphtheria and tetanus toxoids and killed whole cells of the bacterium that causes pertussis (wP).
So, the correct option is "A" (Diphtheria, Wooping cough, Tetanus).