Which Statement Concerning Memory Strategies and Basic Processing Capacities with Age

Which statement concerning memory strategies and basic processing capacities with age is true?

A) Verbal knowledge begins to show a steep decline beginning around age 50.
B) Holding negative stereotypes concerning memory ability actually leads to improved memory abilities in older adulthood.
C) Memory problems in adulthood are more likely the result of original encoding and not retrieval.
D) Limitations in working memory in older adulthood may be due to the slowing of the nervous system.