(A) - (III): "bordered on" → means "almost amounted to" - her replies almost amounted to rudeness.
(B) - (IV): "concurred with" → means "agreed with" - despite reservations, she agreed with his plan.
(C) - (II): "embarked on" → means "began/started" - before they started their course of action.
(D) - (I): "resolved on" → means "firmly decided on" - he firmly decided on making another attempt.
Hence, Option 1: (A) - (III), (B) - (IV), (C) - (II), (D) - (I) → Each phrasal verb/expression correctly completes its respective sentence with appropriate meaning and grammatical structure. "Bordered on" indicates something close to rudeness, "concurred with" shows agreement despite doubts, "embarked on" indicates starting an action, and "resolved on" expresses firm determination → correct