The 2004 balance sheet for American Pulp and Paper is shown below (in millions of dollars):

Cash $3.0

Accounts payable 2.0

Accounts receivable $3.0

Notes payable 1.5

Inventory $5.0

Current Assets $11.0

Current liabilities $3.5

Fixed Assets 3.0

Long-term debt 3.0

Common equity 7.5

Total Assets $14.0

Total liabilities and equity $14.0

How much can sales grow above the 2004 level of $60 million without requiring any additional funds? a) 12.28%, b) 14.63%, c)15.75%, d)17.65%, e)18.14%