If the sequence of nitrogenous bases of the coding strand of DNA-helix is 5 ATGCATGCATGCATGCATGC-3', then what will be the sequence of nitrogenous bases of the complementary strand of the DNA helix?
a) 5TACGTACGTACGTACGTACG-3
b) 5 CGTACGTACGTACGTACGTA-3
c) 5 GCATGCATGCATGCATGCAT-3
d) 5 ATGCATGCATGCATGCATGC-3