Correct option (c) AUG and GUG
Explanation :
AUG and GUG are initiator codons. ln most cases the initiating codon is AUG, which otherwise codecs for methionine. The initiating codon on nRNA is usually AUG, but rarely it could be GUG also. When GUG is used as the initiating codon, it does not code for valine, but initiating methionine molecule should be found in the formulated methionine.
