Some Proponents of Entitlement-Program Reform Suggest Indexing Social Security Benefits

Some proponents of entitlement-program reform suggest indexing Social Security benefits to the consumer price index (CPI) :

A) because beneficiary payments are not currently adjusted for cost of living increases.
B) rather than to the producer price index, because CPI historically grows at a faster rate, which would mean benefit payments would grow at a faster rate.
C) rather than to the producer price index, because CPI historically grows at a slower rate, which would mean benefit payments would grow at a slower rate.
D) rather than to the average wage index, because CPI historically grows at a slower rate, which would mean benefit payments would grow at a slower rate.
E) rather than to the average wage index, because CPI historically grows at a faster rate, which would mean benefit payments would grow at a faster rate.