Write the IUPAC names of the compounds i-iv from their given structures.
`underset(6)CH_(3)-overset(O)overset(||)underset(5)C-underset(4)CH_(2)-underset(3)CH_(2)-underset(2)CH_(2)-underset(1)COOH`

Explanation

To determine the IUPAC name of the given compound, we will follow these steps:

### Step 1: Identify the Functional Groups
The compound contains two functional groups:
1. A carboxylic acid (-COOH)
2. A ketone (C=O)

### Step 2: Determine the Priority of Functional Groups
...