Geometry

Question Analysis：
This is a real-world style problem involving reflection across the y-axis in a coordinate grid.
The main focus is identifying the reflected location using transformation rules.

Key Concept Explanation:
Reflection across the y-axis: (x, y) → (−x, y)

Step-by-Step Solution：
Original point: (12, 8)
Reflect across y-axis: (12, 8) → (−12, 8)
So the second drone is at (−12, 8)

Option Analysis：
A. ✅ Correct – matches the rule.
B. ❌ Reflection over x-axis, not y-axis.
C. ❌ Coordinates flipped — possible rotation error.
D. ❌ Incorrect transformation altogether...