Answer:
b. decrease no effect
Explanation:
When the treasury stock is repurchased and at a premium. That is the price more than the par value, the excess is debited to the additional paid in capital account as this is the account used to fund the additional amount required to pay the differential.
Retained earnings on the other hand are unaffected by this transaction as long as the company has enough funds in the paid in capital account to complete the transaction.
Total paid in capital will decrease
Retained earnings will have no effect
Hope that helps.