Answer:
Thge retained earnings account will decrease by 2,000,000
Explanation:
treasury stock cost: $70 per share.
treasury stock 140,000,000 debit
       cash          140,000,000 credit
it sold 1,000,000 shares to 71 dollars
cash     71,000,000 debit
 treasury stock     70,000,000 credit
 additonal paid-in TS 1,000,000 credit
and then sales 1,000,000 to 67 dollars
cash              67,000,000 debit
additional paid-in TS 1,000,000 debit
retained earnings    2,000,000 debit
  treasury stock              70,000,000 credit