On December 31, Sleek Corporation reported, on its annual report, the following (in millions):

	Year 2	Year 1
Operating income	$4,380.5	$3,781.1
Net earnings	$2,959.8	$2,759.3

Calculate year-over-year increase or (decrease) in net earnings, in percentage terms.

Select one:

a. 7.3%

b. 15.9%

c. 17.3%

d. 6.8%

e. None of the these are correct.