GMAT Critical Reasoning (CR) | Telomerase is an enzyme that is produced only in cells that

Telomerase is an enzyme that is produced only in cells that areactively dividing. For this reason it is generally absent from body tissues in adults. Bone marrow is an exception to this rule, however, since even in adults, bone marrow cells continually divide to replace old blood cells. Cancers are another exception, because their cells are rapidly dividing.

The information provided most strongly supports which of the following?

A. Telomerase is the only enzyme that is present in cancerous cells
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