The phrase 'cough up' is an idiomatic expression. The key is the nuance it carries. The context 'I'll have to' already hints at obligation, not willingness. 'Cough up' specifically suggests a reluctant or forced act of giving something, typically money. Option A captures this nuance perfectly. Option B is the opposite - implying eagerness which 'cough up' never suggests. Options C and D are misleading because they miss the unwilling nature of giving money and don't fit the phrase's connotation of paying a significant sum. **Core Point:** Idiomatic meaning and contextual understanding. **Solution:** 'Cough up' means to give something, especially money, unwillingly. **Option Analysis:** * **A:** Correct. Accurately captures the meaning of 'cough up' in the given context. * **B:** Incorrect. 'Cough up' implies reluctance, not enthusiasm. * **C:** Incorrect. The phrase does not suggest any negotiation or politeness. * **D:** Incorrect. 'Cough up' suggests a significant, not routine, expense. **Common Error:** Mistaking the literal meaning for idiomatic usage, overlooking the negative connotation of 'cough up'.