Review of the financial statements revealed the following for UCW Inc.: sales $1,250,000, net income $37,500, total assets $650,000, long-term debt $750,000, interest expense $65,000 and cost of goods sold $775,000. When preparing common-size financial statements, interest expense would be shown as

a.

8.4%.

b.

5.2%.

c.

9.3%.

d.

10.0%.