Answer :
Final answer:
A 'Business route' is the term used to describe an officially designated highway that branches off the main numbered highway and directs traffic into the business area of a city. Such routes are marked with signs that indicate their status as connectors to commercial centers.
Explanation:
The correct answer to what indicates an officially designated highway that branches off the regularly numbered highway and goes through the business portion of the city is b) Business route. A business route is a secondary road or a section of a highway that diverts traffic into the commercial center of a city or town. Business routes are typically marked with a sign that includes the standard highway number and a distinguishing label such as 'Business' or a letter 'B'.
These routes serve to direct visitors and through-traffic to the areas where stores, restaurants, and other commercial businesses are located. While a bypass highway is designed to allow through traffic to avoid the city center altogether, a business route ensures connectivity and accessibility for those seeking the commercial services within the city.
