Nett Labs orders 30 desktop computers from iDeal, a local computer dealer. Nett Labs requires that each computer has a 2.6 GHz processor, 500 GB hard disk and Windows operating system. iDeal supplies 30 desktop computers, each with a 2 GHz processor, 500 GB hard disk and Windows operating system. Which of the following terms hold true for iDeal's performance?
A) complete performance
B) material breach
C) substantial performance
D) anticipatory breach