How many primary , secondary , tertiary and quanternary carbons are present in the following hydrocarbon
`CH_3-CH(CH_3)-C(CH_3)_2-CH_2-CH(CH_3)-CH_2-CH_3`

Options

A. `{:("Primary", "Secondary" ,"Tertiary ","Quanternary"),(6,2,2,1):}`
B. `{:("Primary", "Secondary" ,"Tertiary ","Quanternary"),(2,6,3,0):}`
C. `{:("Primary", "Secondary" ,"Tertiary ","Quanternary"),(2,4,3,2):}`
D. `{:("Primary", "Secondary" ,"Tertiary ","Quanternary"),(2,2,4,3):}`

Explanation

To determine the number of primary, secondary, tertiary, and quaternary carbons in the given hydrocarbon `CH₃-CH(CH₃)-C(CH₃)₂-CH₂-CH(CH₃)-CH₂-CH₃`, we will analyze the structure step by step.

### Step 1: Understand the Definitions
- **Primary Carbon**: A carbon atom bonded to only one other carbon atom.
- **Secondary Carbon**: A carbon atom bonded to two other carbon atoms.
- **Tertiary Carbon**: A carbon atom bonded to three other carbon atoms.
- **Quaternary Carbon**: A carbon atom bonded to four other carbon atoms.

### Step 2: Draw the Structure
The given hydrocarbon can be represented as follows:
```
CH₃
|
CH₃-CH- C - CH₂ - CH - CH₂ - CH₃
|
CH₃
```
This structure shows the branching and connectivity of the carbon atoms.

### Step 3: Identify Each Carbon
Now, we will label each carbon in the structure:

1. **C1**: CH₃ (Primary)
2. **C2**: CH (Secondary)
3. **C3**: C (Tertiary)
4. **C4**: CH₂ (Primary)
5. **C5**: CH (Secondary)
6. **C6**: CH₂ (Primary)
7. **C7**: CH₃ (Primary)

### Step 4: Count Each Type of Carbon
Now we will count how many of each type of carbon we have:

- **Primary Carbons**: C1, C4, C6, C7 → 4 Primary Carbons
- **Secondary Carbons**: C2, C5 → 2 Secondary Carbons
- **Tertiary Carbons**: C3 → 1 Tertiary Carbon
- **Quaternary Carbons**: None → 0 Quaternary Carbons

### Final Count
- Primary Carbons: 4
- Secondary Carbons: 2
- Tertiary Carbons: 1
- Quaternary Carbons: 0

### Summary
The hydrocarbon `CH₃-CH(CH₃)-C(CH₃)₂-CH₂-CH(CH₃)-CH₂-CH₃` contains:
- **4 Primary Carbons**
- **2 Secondary Carbons**
- **1 Tertiary Carbon**
- **0 Quaternary Carbons**