This sign indicates the beginning of…
A)An expressway.
B)A road with an overpass.
C)A motorway.Correct
# Explanation: Beginning of Motorway
The correct answer is **"A motorway"**. This blue rectangular sign indicates the beginning of a motorway, which is a high-speed road with special characteristics such as limited access, separated lanes, and tolls in many cases. Expressways, although also fast roads, have a different design and are signposted differently.