From the following, identify the correct combination of salient features of Genetic Code :-

Some amino acids are coded by more than one codon, hence the code is degenerate. One codon codes for only one amino acid, hence it is non-ambiguous.The codon is read in mRNA in a contiguous fashion. There are no punctuations. The genetic code is non-overlapping i.e.. no single base can take part in the formation of more than one Codon.