write the fischer projection of `CH_(3) CH(OH) COOH`

Explanation

To write the Fischer projection of the compound CH₃-CHOH-COOH, follow these steps:

### Step 1: Identify the Structure
The molecular formula CH₃-CHOH-COOH indicates that we have three carbon atoms in the chain. The structure can be represented as:
- Carbon 1 (C1) has a hydroxyl group (-OH) and is part of the aldehyde group (CHO).
- Carbon 2 (C2) is the carbon with the hydroxyl group (-OH).
- Carbon 3 (C3) has a carboxylic acid group (-COOH).

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