Which is the most stable conformer among the following ?

Options

A.
B.
C.
D.

Explanation

To determine the most stable conformer among the given options, we need to analyze the conformations based on their spatial arrangements and the resulting steric and torsional strains. Here’s a step-by-step solution:

### Step 1: Identify the Conformers
We are provided with four different conformers represented in the Sawhorse projection. We need to analyze each conformer to understand their arrangements.

### Step 2: Analyze Conformer A
In Conformer A, both bulky groups (CH3) and the hydroxyl groups (OH) are positioned in an anti configuration. This arrangement minimizes steric hindrance and torsional strain, making it a relatively stable conformer.

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