Which of the following does NOT support the RNA world as a model of early life?
a) RNA requires less energy to form and degrade than DNA.
b) In some enzymes, remnants of RNA may be present as nucleotide cofactors such as NADH or coenzyme A.
c) Ribozymes are RNA-based catalytic molecules that participate in a variety of reactions.
d) Genomic sequences show a large number of catalytic and structural RNAs.
e) Abiotic reactions in Archaean oceans could have led to the synthesis of complex biomolecules in the so-called prebiotic soup.