Hopefully this will help and it's what you are looking for.
The correct answer for the question that is being presented is this one: "a. GCU AGA." The <span>strand of mRNA that would be made during transcription using the DNA strand, '</span>CGA TCT ' is this: GCU AGA.
Cytosine is paired with Guanine,
Adenine is paired with Uracil.
Thymine is paired with Adenine.<span />