Question

what is the function of trna?
carry genetic instructions for building a protein
catalyze the assembly of amino acids into a protein
bring an amino acid to the ribosome

Explanation:

tRNA (transfer RNA) has the role of transporting amino acids to the ribosome during protein synthesis. mRNA (messenger RNA) carries genetic instructions for building a protein. Ribosomal RNA (rRNA) is involved in catalyzing the assembly of amino acids into a protein.

Answer:

bring an amino acid to the ribosome