Question 1000Navigation General

The correct answer is D) 30 knots. The surface analysis in illustration D049NG shows wind barbs, which indicate wind speed and direction. The wind barb at position C depicts a full wind barb and a half wind barb, which corresponds to a wind speed of 30 knots according to the standard wind barb symbology used in weather analysis. The other answer choices are incorrect because 3 knots (A) is too low, 10 knots (B) is too low, and 20 knots (C) is too low to match the wind barb depiction at position C in the surface analysis.