Nucleophilic Addition to Carbonyls

In organic chemistry, carbonyl compounds play a crucial role in various reactions and transformations. These compounds are characterized by a carbon atom double-bonded to an oxygen atom (C=O). Understanding the behavior of carbonyl groups is essential for predicting the outcomes of chemical reactions. Consider the following carbonyl compound: 4-methylpentan-2-one. Based on its structure and reactivity, answer the following question:

Which of the following reagents, when reacted with 4-methylpentan-2-one, would most likely lead to the formation of a corresponding alcohol via a nucleophilic addition mechanism?