The correct answer is C. Rash.
Reckless is defined as “acting without proper caution or care.” Daring is defined as “willing to take risks.” Bold is defined as “having or showing a confident or courageous character.” Courageous is defined as “having or showing the quality of being willing to face danger or pain.”
Of the four options, rash is the closest synonym of reckless. This is because rashness is characterized by a lack of caution or care, which is also a key feature of recklessness. Daring, bold, and courageous, on the other hand, do not necessarily involve a lack of caution or care. For example, a daring person might be willing to take risks in order to achieve a goal, but they would still take precautions to minimize the chances of failure. A bold person might be confident in their abilities, but they would still be careful not to take unnecessary risks. And a courageous person might be willing to face danger, but they would still do so in a way that is calculated and deliberate.
In conclusion, the correct answer to the question “Synonym of RECKLESS” is C. Rash.