Required information Brief Exercise 18.2 Matching Cost Systems and Business Activities (LO18-1) [The following information applies to the questions displayed below.] Select the appropriate cost system among Job order costing, Process costing, Activity-based costing used by the following businesses. Brief Exercise 18.2 Part a a. Ketcher, Tryer, and Friar, attorneys-at-law. (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.) Job order costing Process costing Activity-based costing