What can stabilize an aircraft's glide path when approaching in a tailwind?

Stabilizing an aircraft's glide path during an approach in a tailwind primarily involves increasing speed. When an aircraft encounters a tailwind, it can be at risk of descending too quickly or having difficulty maintaining the desired glide slope due to the varying groundspeed. By increasing speed, the pilot can enhance control and ensure that the aircraft maintains a consistent and stable glide path toward the runway.

Increasing speed helps counteract the effects of the tailwind, allowing for better management of lift and drag during the approach. Additionally, a higher speed can help the pilot more effectively manage the descent rate and navigate any unexpected changes in airspeed that might occur because of the wind conditions, ultimately leading to a safer landing.

In contrast, other options like decreasing thrust may not provide the necessary lift needed to counteract the effects of a tailwind, while pitching down and making configuration changes could complicate the approach further and may not address the need for stability in the glide path directly.