The following information of Red Oak Manufacturing is available for the current year:

Net income $$844,200$

Net sales $6,809,000$

Average total assets $5,911,000$

Average stockholders' equity $2,575,000$

The total leverage as per the DuPont analysis computation is

a$.2\mathrm{.}30.$

b$.12\mathrm{.}40.$

c$.2\mathrm{.}64.$

d$.15\mathrm{.}20.$