“This is a way of telling everyone the lifeguard is back; you can get back in the pool” refers to

a. Alan Greenspan’s confusion between the pool and the ocean (i.e., the ocean, but not a pool, may have sharks!).

b. Alan Greenspan’s strategy as chairman of the federal reserve of instructing the US Federal Reserve to buy heavily of US stocks whenever the market faltered.

c. Alan Greenspan’s strategy as chairman of the federal reserve of lowering interest rates when the market faltered.

d. None of the above can be said to be essentially true.