According to the 2013 Spencer Lab laser study, approximately what percent of non-HP toner
cartridges had problems?

A.
30%

B.
50%

C.
70%

D.
90%

Explanation:
Reference:
http://www.techdata.co.uk/Pages/Start.aspx?p=Press%20Release&c=Detail&PressRelease=true&
PId=1&ID=179&corpregionid=14&Inframe=yes%20&Culture=en-gb&SystemPage=yes (last para)