The Increased Levels of Telomerase Associated with Many Tumor Cells

The increased levels of telomerase associated with many tumor cells likely promote cancer by:

A) enhancing levels of DNA repair so that cells remain normal and have stable genomes and thus would be able to replicate their DNA and divide more often.
B) promoting the efficiency of the spindle-assembly checkpoint.
C) reducing the expression of several oncogenes.
D) allowing cells to continue to divide when normally chromosomes should shorten beyond a point where division would be no longer possible.
E) decreasing the number of epigenetic changes that would promote cancer.