Directions: In the question, there are four sentences. Each sentence has pairs of words/phrases that are italicized and highlighted. Select the most appropriate word or phrase to form grammatically and syntactically correct sentences. Then, from the options given, choose the best one. (A) The (A) comatose / (B) ambulatory patient is likely to regain consciousness in a few hours. (B) Put the letter into an (A) envelop / (B) envelope. (C) One cannot (A) wreak / (B) reek vengeance when one is expected to act in a dispassionate manner. (D) Backward regions that are otherwise well connected are proving to be tax (A) heavens / (B) havens for such industrial units as can relocate.