To ensure that the button slips easily into a buttonhole, follow 2 and 4:
Sew the buttonhole: The program coordinator needs to carefully sew the buttonhole in the fabric, ensuring that it is the right size for the button to fit easily. The buttonhole should be securely stitched but not too tight.
Position the button: Once the buttonhole is sewn, the program coordinator needs to properly position and attach the button to the garment. The button should align with the buttonhole, allowing for easy insertion and secure fastening.
Therefore, the correct answers are 2 and 4.