The product of following reaction is `CH_3-undersetunderset(CH_3)|oversetoverset(CH_3)|C-CH=CH_2underset((ii)NaBH_4)overset((i)Hg(OAc)_2, H_2O)to `

Options

A. `CH_3-undersetunderset(CH_3)(|)oversetoverset(CH_2)|C-undersetunderset(OH)|CH-CH_2`
B. `CH_3-undersetunderset(CH_3)|overset(CH_3)overset|C-CH_2-CH_2OH`
C. `CH_3-undersetunderset(CH_3)|oversetoverset(OH)|C-oversetoverset(CH_3)|CH-CH_3`
D. `HOCH_2-undersetunderset(CH_3)|oversetoverset(CH_3)|C-CH_2-CH_3`

Explanation

To solve the given reaction step by step, we will go through the two main reactions involved: oxymercuration and demercuration.

### Step 1: Understanding the Reactants
The starting compound is:
\[ CH_3 - C(CH_3)_2 - C = CH_2 \]
This compound has a double bond between the last two carbon atoms.

### Step 2: Oxymercuration Reaction
In the first step, we perform oxymercuration using mercury acetate (Hg(OAc)₂) and water (H₂O). According to Markovnikov's rule, the more substituted carbon will get the hydroxyl (OH) group, while the less substituted carbon will get the mercury acetate (Hg(OAc)).

1. **Breaking the double bond**: The double bond between the last two carbon atoms will break.
2. **Adding Hg(OAc) and OH**: The OH group will add to the more substituted carbon (the one with more hydrogens), and the Hg(OAc) will add to the less substituted carbon.

The reaction will yield:
\[ CH_3 - C(CH_3)_2 - C(OH) - C(HgOAc) \]

### Step 3: Demercuration Reaction
In the second step, we perform demercuration using sodium borohydride (NaBH₄). This step replaces the mercury acetate (Hg(OAc)) with a hydrogen atom.

1. **Removing Hg(OAc)**: The Hg(OAc) group will be replaced by a hydrogen atom.
2. **Final Product Formation**: The final product will have an OH group on the more substituted carbon and a hydrogen on the less substituted carbon.

The final product will be:
\[ CH_3 - C(CH_3)_2 - C(OH) - CH_2 \]

### Final Product
The final structure can be represented as:
\[ CH_3 - C(CH_3)_2 - CH(OH) - CH_2 \]

### Conclusion
Thus, the product of the reaction is:
\[ CH_3 - C(CH_3)_2 - CH(OH) - CH_2 \]