English

A furlong is a unit of distance equal to one-eighth of a mile, so the correct synonym is 'eighth of a mile'. The other options do not relate to the meaning of furlong.

The word "domestic" means related to the home or native to a particular country. Among the options, "native" is the closest synonym, as it refers to something originating or occurring naturally in a particular place. The other options do not match the meaning of "domestic."

The word "immunize" means to protect someone against disease, typically by vaccination. Therefore, the synonym "protect against disease" is the correct choice.

The word "mangy" means shabby, dirty, or in poor condition, often used to describe something neglected or run-down. Among the options, "shabby" is the closest synonym, making option C correct.

The word 'facade' primarily means the front of a building, but it is often used metaphorically to mean a deceptive outward appearance or 'cosmetic' cover-up. Among the options, 'cosmetic' best captures the synonym in a figurative sense, while 'building front' is a literal meaning but not a synonym. Therefore, 'cosmetic' is the best synonym here.

The word "obligatory" means something that is required or mandatory. Among the options, "required" is the synonym that best matches this meaning.

The word 'reformation' means the act of making changes to improve something, so 'change' is the closest synonym among the options provided.

A 'rotunda' is a round building or room, often with a dome. Therefore, the synonym 'circular building' correctly matches the meaning of 'rotunda'.

The word "bemuse" means to confuse or bewilder someone. The antonym is "clarify," which means to make something clear or easier to understand, directly opposing the meaning of bemuse.

The word "altercation" means a noisy argument or disagreement, so its synonym is "quarrel." The other options do not convey the meaning of a dispute or argument.