Silver Corporation has average gross receipts of $5.6 million, $4.6 million, and $4.7 million in 2008, 2009, and 2010, respectively. Silver is:
a) Not subject to the corporate income tax.
b) A small corporation with respect to the AMT.
c) Subject to the AMT.
d) Not a small corporation with respect to the AMT.
e) None of the above.