24. Billings Company's plant manager is trying to better understand his plant's inventory workow. He determined that $10 million was spent to purchase raw materials, $2 million on direct labor and $3 million on manufacturing overhead. If raw materials beginning and ending inventories are $2 million and $1 million, respectively, and work- in-process beginning and ending inventories are $6 million and $4 million respectively, how much is cost of goods Manufactured? a. $17 million b. $16 million c. $15 million (1. $ 1 8 million e. None of the above