A yellow warning sign with a black Y-shaped symbol indicates what roadway condition ahead?

Correct answer: B – The roadway branches at a Y-intersection
The Y-intersection warning symbol represents the general configuration of the roadway ahead. It alerts you that the roadway branches at an upcoming intersection rather than ending at a T-intersection. Be prepared to adjust your speed and position for the split.
Source: Manual on Uniform Traffic Control Devices, 11th ed. — § 2C.01, “Purpose of Warning Signs”, Manual on Uniform Traffic Control Devices, 11th ed. — § 2C.41, “Intersection Warning Signs”

