Which of the following statements is correct regarding eukaryotic...

Options

1. A$m$ RNA attaches itself to larger subunit of ribosome in the region of its cap for initiation.
2. BAminoacyl $t$ RNA synthetase activates the amino acids by adding ATP that is later used in formation of peptide bond.
3. CDuring aminoacylation of $t \mathrm{RNA}$, the amino acid gets linked to 5' $-\mathrm{COOH}$ group of $t$ RNA through its $3^{\prime}-\mathrm{OH}$ group.
4. DDuring elongation of polypeptide chain, the aminoacyl $t$ RNA complex reaches at E-site and attaches to mRNA codon next to initiation codon.