Why can a JIS screw be a trap for someone using a Phillips driver?

Select one answer.

• JIS screws look almost identical to Phillips but have a subtly different geometry, so a Phillips driver doesn't seat fully and cams out and strips the head — use a JIS driver instead.
• JIS screws are exactly the same as Phillips, so any Phillips driver works perfectly.
• JIS screws are much larger than any Phillips driver could ever fit.
• JIS screws can only be removed by heating them first.