Aguest orders a hot coffee with sugar substitute, dairy and a swirl. what order should the ingredients be assembled

A guest orders a hot coffee with sugar substitute, dairy, and a swirl. The order through which the ingredients should be assembled is:

1. Add the Flavor

2. Add the Combination of flavor

3. Mix Flavor, sugar, and dairy

4. Mix Flavor, sugar, and no dairy

5. Mix Flavor, no sugar, and dairy

6. Use Sugar substitute with dairy

The answer is going to be a because ik that i’m right