The TRS Sequence on the Coronavirus Genome Is Involved in Which

The TRS sequence on the coronavirus genome is involved in which of the following processes?

A) Synthesis of the full length negative strand copy of the genome.
B) Transcription of the subgenomic negative strands.
C) Synthesis of the full-length positive strand genomes.
D) Packaging of the viral genome into the capsid.
E) Translation of the genome into protein.