Identifying Functional Groups: Alcohols

In organic chemistry, functional groups determine the characteristics and reactivity of molecules. One essential functional group, the hydroxyl group (-OH), plays a critical role in the solubility of alcohols in water, their acidity, and their ability to participate in hydrogen bonding. Understanding the difference between various functional groups helps in predicting the behavior of organic compounds.

Consider a compound represented by the structure below, which features a key functional group.

Which of the following options represents the name of the functional group present in the compound?