The correct answer is C. Ease.
To assuage is to make something less severe or intense. It can also mean to relieve or soothe someone’s pain or discomfort. Some other synonyms for assuage include alleviate, allay, mitigate, and palliate.
Option A, rub, is not a synonym for assuage. To rub is to move one’s hand or another object over a surface in a repeated, usually circular motion.
Option B, prohibit, is not a synonym for assuage. To prohibit is to forbid or prevent something from happening.
Option D, enlarge, is not a synonym for assuage. To enlarge is to make something bigger or more extensive.
In conclusion, the correct answer to the question “Synonym of ASSUAGE” is C. Ease.