Write the full forms of the following abbreviations:
(a) TAB
(b) BCG
(c) DNA
(d) GMO
(a) TAB — Typhoid-paratyphoid A and B
(b) BCG — Bacille Calmette-Guerin
(c) DNA — Deoxyribonucleic Acid
(d) GMO — Genetically Modified Organism
