(A) - (I) "on behalf of" → Fighting on behalf of his country means representing/serving the country.
(B) - (III) "on account of" → Losses on account of negligence means losses caused by/because of negligence.
(C) - (II) "in favour of" → Abdicated in favour of her son means she gave up the throne so her son could take it.
(D) - (IV) "go along with" → Can't go along with means unable to agree with or support the plan.
Hence, Option 2: (A) - (I), (B) - (III), (C) - (II), (D) - (IV) → All phrasal prepositions and verb phrases are correctly matched with their contextually appropriate sentences, maintaining proper grammatical structure and idiomatic usage → correct