Can we draw the following hypothesis from the context (see options)? 

Context:

Federal Reserve Chairman, Alan Greenspan, warned Friday that recent gains in U.S. home prices, stock values and other forms of wealth may be temporary and could easily erode if long-term interest rates rise.

Hypothesis: Alan is a federal chairman
Available choices:
(A). Yes;
(B). It's impossible to say;
(C). No;
(A).