Select an incorrect statement regarding $\text{RNA}$ molecules.

Given below are two statements:
Statement $I$: In the $\text{RNA}$ world,$\text{RNA}$ is considered the first genetic material evolved to carry out essential life processes. $\text{RNA}$ acts as a genetic material and also as a catalyst for some important biochemical reactions in living systems. Being reactive,$\text{RNA}$ is unstable.
Statement $II$: $\text{DNA}$ evolved from $\text{RNA}$ and is a more stable genetic material. Its double helical strands being complementary,resist changes by evolving a repairing mechanism.
In the light of the above statements,choose the most appropriate answer from the options given below:

Which of the following $RNA$ is non-functional?

Dominance of $RNA$ world is proved by

If there are two pathogenic viruses,one with $DNA$ and the other with $RNA$,which would mutate faster? And why?

Give scientific reasons: It is likely that $DNA$ evolved from $RNA$.