Which word is a synonym for 'ratify'?

Explanation

'Ratify' means to officially approve or confirm a decision, agreement, or treaty. Among the options, 'Authorize' best matches this meaning. The other choices differ in meaning: 'Bargain' refers to negotiating terms; 'Condemn' means to criticize strongly; 'Contest' implies disputing or challenging something; and 'Confirm' is similar but not the exact synonym chosen here.