Given the indicated parameters, what would be the magnetic heading and groundspeed?

To determine the magnetic heading and groundspeed, it is essential to understand how to interpret the indicated parameters based on wind conditions, aircraft performance, and the influence of magnetic variation.

In this scenario, the magnetic heading is derived by considering the effects of wind drift and the intended track. The correct magnetic heading reflects the adjustments made for any winds that may cause the aircraft to drift off course. For this question, a heading of 323° suggests that the aircraft has accounted for the wind direction adequately, allowing it to maintain its intended track effectively despite any crosswinds.

Groundspeed is calculated by combining the aircraft's true airspeed with the wind speed and direction. In this case, a groundspeed of 177 knots indicates that the aircraft is making good progress over the ground, which is important for flight planning and navigation. This number reflects the net speed after adjusting for headwinds or tailwinds—signifying a strong performance by the aircraft at that specific flight parameter.

Thus, the combination of a magnetic heading of 323° and a groundspeed of 177 knots indicates optimal navigation and flight efficiency, making this choice the most accurate among the options provided.