Which of the following property specifies the order of a flexible item relative to the rest of the flexible items inside the same container?

The correct answer is: C. order

The order property specifies the order of a flexible item relative to the rest of the flexible items inside the same container. It can be used to specify the order in which flexible items are laid out, or to specify the order in which they are rendered.

The sort property specifies the order in which flexible items are sorted. It can be used to sort flexible items by their size, their position, or their value.

The layout property specifies the layout of a flexible item. It can be used to specify the size, position, and alignment of a flexible item.

The asort property is not a valid property.