Draw the structure of a carbonyl group and indicate :
the `sigma and pi` bonds.

Explanation

To draw the structure of a carbonyl group and indicate the sigma and pi bonds, follow these steps:

### Step 1: Draw the Carbonyl Group Structure
The carbonyl group consists of a carbon atom (C) that is double bonded to an oxygen atom (O). The general structure can be represented as follows:

```
O
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...