Use the segment opportunity-risk matrix for a school-safe mobile repair help desk. Text exhibit: Four-quadrant matrix titled Mobile Help Desk Segment Opportunity and Risk. X-axis Implementation risk low to high; y-axis Validated urgency low to high. Points: Approved device-loan students high urgency low risk; Personal phone owners high urgency high risk due to repair rules; Custom case shoppers low urgency low risk; Community adults medium urgency high risk. Callout: media center can refer approved device-loan students during school hours. Which ICP should be chosen for the first school pilot?