McCain Unsure of How Many Homes He Owns

Alternative answer to Rick Warren's question about when a person can be considered "rich"? Maybe when you start saying things like this:

"I think - I'll have my staff get to you. It's condominiums where - I'll have them get to you."

-John McCain, in response to being asked how many
homes he owns, Aug. 20, 2008 (via Politico)

But the real question is, did McCain say this because:

(a.) it really is such a high number that he lost track;
(b.) he's going senile (seriously, is it that hard to remember, especially when you know someone's bound to ask?); or
(c.) it's an outrageously high number and he's playing coy.

I think the most disturbing answer is the most likely: (b). What do you think?
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