This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
All of the following are associated with increased aging, except 
Select and explain. 
A. Decreased cellular replication, B. Increased superoxide dismutase, C. Increased accumulation of free radicals, D. Accumulated mutation in somatic cells
B: Increased superoxide dismutase
Answer: B: Increased superoxide dismutase 
Explanation: Cellular aging is the result of a progressive decline in the lifespan and functional capacity of cells. Several mechanisms are thought to be responsible for cellular aging areDNA damage. A variety of metabolic insults that accumulate over time may result in damage to nuclear and mitochondrial DNA.Decreased cellular replication.Defective protein homeostasis( Robbins Basic Pathology, 9th edition, page 26 )