Using codon–anticodon pairing rules, determine which tRNA anticodon sequence (5' to 3') would pair with the mRNA codon 5'-AUG-3'. Show your base-pair reasoning.

• A. 5'-GTA-3' because DNA base pairing rules apply directly and thymine substitutes for uracil in tRNA anticodons.
• B. 5'-UAC-3' because the anticodon is always shown in the same 3' to 5' orientation as the codon without complementarity adjustments.
• C. 5'-CAU-3' because the anticodon must be complementary and antiparallel to 5'-AUG-3', so 3'-UAC-5' corresponds to 5'-CAU-3'.
• D. 5'-AUG-3' because tRNA anticodons are identical to the mRNA codon sequence in the 5' to 3' orientation to pair without antiparallel orientation.

Answer: (C)