Final answer:
The correct answer is (a) compliant.
Step-by-step explanation:
The correct answer to this analogy is (a) compliant. An analogy is a comparison between two pairs of words that have a similar relationship. In this analogy, the words 'mollify' and 'assuage' have a synonym relationship, meaning they have similar meanings. Similarly, the word 'resistant' is the opposite of 'compliant' and has an antonym relationship. Therefore, the word that completes the analogy is 'compliant.'