Suppose that Merck (MRK) stock is trading for $36.70 per share with 2.11 billion shares outstanding while Boeing (BA) has 697.5 million shares outstanding and a market capitalization of $38.223 billion. Assume that you hold the market portfolio. Merck's market capitalization is closest to: _________

a. 330 shares.
b. 240 shares.
c. 780 shares.
d. 510 shares.