The only trait that archaeans and eukaryotes share of all the options is the presence of introns.
Introns are also known as the non-coding segments of transcribed RNA. They are as opposed to the coding segments known as exons.
When RNAs are transcribed from DNAs, not all the sequence is translated during protein synthesis. Some sections in the sequence do not code for any trait. Thus, these sections are cut off from the RNA. The coding segments (exons) are then joined back before they are utilized in protein synthesis.
Both archaeans and eukaryotes are known to have non-coding segments in their transcribed tRNA.
More on introns can be found here: https://brainly.com/question/14317818
