Indexing Social Security payments:
a. no longer requires a concerted effort on the part of Congress to maintain their real value.
a. still requires a concerted effort on the part of Congress to vote the amount of increase.
c. no longer requires a concerted effort on the part of Congress to maintain their nominal value.
d. still requires a concerted effort on the part of Congress to convert them to their nominal amounts.

A. No longer requires a concerted effort on the part of Congress to maintain their real value.

Explanation:Social security payments are payments made to retirees or the disabled or aged members of the society in the United States of America. It is manages by the SSA(SOCIAL SECURITY ADMINISTRATION) of the Federal Government.

Social Security indexing is the process of computing a person's benefit, it is done using the national average wage indexing series to index a person's earnings. Such computation ensures that a worker's future benefits shows the rise in the standard of living that took place during his or her working age.

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