HI Mate! The right answer is vascular tissue!
So here we have two heterozygous organisms that will mate. You can put them into a Punnet square, just to be sure of your answers and to find all possible genotypes :
R r
R RR Rr
r Rr rr
So you have RR, Rr and rr as your possible genotypes.
Answer:
and the other questions you have the arm to
Violet, as it has the shortest wavelength on the colour spectrum