An RN Working in a Research Unit Is Responsible for Data

An RN working in a research unit is responsible for data and specimen collection for multiple research studies. A patient is admitted as a participant in a study focused on the role of tRNA mutations in Alzheimer's disease. The 78-year-old male is accompanied by his wife and daughter. Prior to obtaining the first blood specimen, the study coordinator provides education regarding the importance of the study and the overall process of protein synthesis.
-During protein synthesis,the final mRNA codon on the strand,UAA,recruits which of the following tRNA molecules to the ribosomal complex?  

A) tRNA carrying methionine
B) tRNA carrying proline
C) tRNA carrying arginine
D) No corresponding tRNA exists for this codon.