Fatty acids such as butter and oils and phospholipids are examples of this organic molecule: Carbohydrates Lipids Proteins Nucleic Acids

## Step 1<br />The problem is asking us to identify the type of organic molecule that fatty acids, butter, oils, and phospholipids belong to. The options provided are carbohydrates, lipids, proteins, and nucleic acids.<br /><br />## Step 2<br />Fatty acids, butter, oils, and phospholipids are all examples of lipids. Lipids are a group of naturally occurring molecules that include fats, waxes, sterols, fat-soluble vitamins, monoglycerides, diglycerides, triglycerides, and phospholipids.<br /><br />## Step 3<br />Lipids are a diverse group of compounds that are insoluble in water but soluble in organic solvents. They are an important part of the cell membrane and are used for energy storage.