Your company deals with manufacturing bearings for the automobile industry. You already have historical information about the errors and defects that have been identified and you would like to use this information to determine future performance. An appropriate tool which you can use is ______ .

A) scatter diagram
B) statistical sampling
C) control chart
D) trend analysis

平等是互惠互利的基本（）。

A.保障

B.前提

C.要求

D.假设