Answer:
C). Joy.
Step-by-step explanation:
According to the question, the most appropriate definition for the word 'exultation' would be 'joy' as per the context of the given statement. The word 'exultation' denotes 'rapturous delight or the great joy of being at an advantage, victory, or triumph' which goes apt to the meaning of the sentence to imply that 'Madge felt 'great pleasure or joy of triumph or Miller's defeat' while having a glance at her husband (who signals a warm approval to her point) during the debate. Thus, option C is the correct answer.