Final answer:
The subject of this question is Business as it pertains to Under Armour's footwear net revenues, and the revenue increase from 2013 to 2014. Stone and Curry are mentioned in relation to the impact on the sales.
Step-by-step explanation:
The subject of this question is Business as it pertains to Under Armour's footwear net revenues. The question is asking about the increase in net revenues from 2013 to 2014 and the revenue specifically for the fourth quarter in those years. The mention of Stone and Curry is likely referring to the impact of Under Armour's partnership with basketball player Stephen Curry in driving footwear sales.