RNA splicing in eukaryotic cell protein synthesis means?

51.RNA splicing in eukaryotic cell protein synthesis means
A)that the product of translation, called the primary transcript is cut and put back together to produce the mature mRNA transcript
B)that the product of transcription, called the secondary transcript is cut and put back together to produce the mature tRNA transcript
C)that the product of translation, called the primary transcript is cut and put back together to produce the mature tRNA transcript
D)that the product of transcription, called the primary transcript is cut and put back together to produce the mature mRNA transcript