What is the correct action if a pilot encounters wind shear during take-off?

In the event of encountering wind shear during take-off, selecting TOGA (Take-Off Go-Around thrust) is vital because it ensures maximum thrust is available to counteract the sudden changes in wind velocity or direction. By using TOGA thrust, the aircraft can achieve the necessary lift to maintain a safe climb or improve its performance during this critical phase of flight. This option effectively provides the power needed to respond to the unpredictable conditions associated with wind shear, allowing the pilot to maintain control and improve the aircraft's performance.

While other responses address aspects of handling the situation, they may not prioritize immediate power and thrust as effectively. For instance, pitching up might help manage climb, but without the maximum thrust provided by TOGA, the aircraft may not have enough power to respond adequately to the wind shear. Therefore, selecting TOGA is the correct and most effective initial response in ensuring safety and maintaining control during take-off in such challenging conditions.