Answer:
Option (B)
Explanation:
According to the scenario, computation of the given data are as follow:-
Journal Entry
30 Sept. Treasury stock A/c Dr. $20,000
        (1,000 × $20)       Â
        To Cash A/c $20,000 Â
2 Oct. Cash A/c Dr. Â $8,400
        ($21 × 400)  Â
        To Treasury stock A/c ($20 × 400)  $8,000  Â
        To Additional paid in capital-treasury stock A/c $400  Â
               ($8,400-$8000)
12 Oct. Cash A/c Dr. $11,400
         ($19 × 600)
        Additional paid in capital-treasury stock A/c Dr $ 400
        Retained earnings (plug) A/c  Dr. 200 Â
        To Treasury stock A/c  $12,000
          ($20 × 600)
According to the analysis, option (b) is correct.