What property of Row/Column decides where to put the extra space?*1 pointmainAxisAlignmentflexcrossAxisAlignmentchildren

The property that decides where to put the extra space in Row/Column is MainAxisAlignment.

Here's a step-by-step explanation:

1. MainAxisAlignment is a property in Flutter that determines how the extra space along the main axis (horizontal for Row, vertical for Column) should be distributed among the children widgets.

2. MainAxisAlignment has several options like start, end, center, spaceBetween, spaceAround, and spaceEvenly. Each option positions the children widgets differently.

3. For example, if you set MainAxisAlignment to start, the children widgets will be positioned at the start of the Row or Column, and all the extra space will be at the end.

4. If you set MainAxisAlignment to spaceBetween, the extra space will be evenly distributed between the children widgets.

5. Therefore, by changing the MainAxisAlignment property, you can control where to put the extra space in Row/Column.