Question: Which description correctly describes the initial values of flex items if the only thing you have done is apply `display: flex` to their parent?

1. Items display in a row, lined up at the start, and do not stretch to fill the container
2. Items display in a column, lined up at the start, and do not stretch to fill the container
3. Items stay in a column until you add some flex properties.
4. Items display in a row, lined up at the start, and stretch to fill the container

Answer: The correct answer of the above question is Option A:Items display in a row, lined up at the start, and do not stretch to fill the container