Which statement regarding the efficient markets hypothesis is true?

Select one:

a. If your uncle earned a return higher than the overall stock market last year, this is evidence that the stock market is inefficient.

b. If a market is weak-form efficient, this implies that analyzing its past price history will not enable one to earn an above-normal rate of return on the stock in the future.

c. If a market is weak-form efficient, this implies that all public information is rapidly incorporated into market prices.

d. If a market is strong-form efficient, this implies that the returns on a firm's bonds and stocks should be identical.