Concept- The phrases are wont to denote various feelings, situations, within the variety of idioms, proverbs, and others. during this case, the phrase or the idiom, ‘threw cold water over’ to spoil or reduce the joy, craze, or motivation of somebody.
Option 1 is rejected. As described within the hint, the phrase doesn't mean to directly reject someone or something. And rejected, strictly denied or dismissed.
Option 2 is inspired. The word to motivate someone. this is often opposite in desiring to the given phrase or idiom.
Cleared to urge clean chit or free from something. This word is nowhere associated with the meaning that we've got discussed within the hint. Therefore, option 3 is additionally not the meaning of the given phrase/idiom.
Option 4 is discouraged. this suggests to spoil the joy or to demotivate an individual from doing something. this can be just like the meaning discussed within the Above Definition.
Hence , the correct option is Option 4 - Discouraged.