The IUPAC name of the compound
`{:(CH_(3)-CH-CH_(2)-CH-CH_(3)),(" | |"),(" OH CH"_(3)):}`

Options

A. 3-Methylpenten-2-ol
B. 2-Methylpentan-2-ol
C. 4,4-Dimenthybutan-2-ol
D. 4-Methylpentan-2-ol

Explanation

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

### Step 1: Identify the Structure
The compound is represented as:
```
CH3
|
CH3-CH-CH2-CH-CH3
|
OH
```
This indicates that there is a hydroxyl (OH) group attached to one of the carbon atoms, making it an alcohol.

### Step 2: Draw the Compound
We can draw the compound in a more conventional way. The longest carbon chain consists of five carbon atoms. The structure can be represented as:
```
CH3
|
CH3-CH-CH2-CH-CH3
|
OH
```

### Step 3: Number the Carbon Chain
We need to number the carbon chain in such a way that the carbon with the hydroxyl group (OH) receives the lowest possible number. Starting from the left:
1. CH3 (1)
2. CH (2)
3. CH2 (3)
4. CH (4)
5. CH3 (5)

The carbon with the OH group is at position 2.

### Step 4: Identify Substituents
In this structure, there is a methyl group (CH3) attached to the fourth carbon.

### Step 5: Combine Information for IUPAC Naming
Now we can combine the information:
- The longest chain has 5 carbons, which is called "pentane."
- The hydroxyl group is on the second carbon, so we use "2-ol" to indicate the alcohol.
- The methyl group is on the fourth carbon, so we denote it as "4-methyl."

### Step 6: Finalize the Name
Putting it all together, the IUPAC name of the compound is:
**4-methylpentan-2-ol**