What percent of total work hours must be used to fix errors that occur on the assembly line in mass-production plants ?

What percent of total work hours must be used to fix errors that occur

1.	What percent of total work hours must be used to fix errors that occur on the assembly line in mass-production plants ?
A.	50%
B.	25%
C.	35%
D.	40%
Answer» C. 35%