In Eukaryotes Which of the Following Is the First Step

Multiple Choice

In eukaryotes which of the following is the first step in translation?

A) base pairing of activated methionine-tRNA to AUG of the messenger RNA
B) binding of the larger ribosomal subunit to smaller ribosomal subunits
C) the ribosome reaches a stop codon
D) the small subunit of the ribosome recognizes and attaches to the 5′ cap of mRNA