They stopped cars and questioned them. They wrote tickets for minor or sometimes imaginary violations. And they made an ultimatum
"<u>Single-source tracking</u>" is the "posttest method" used in "broadcasting commercials".
<u>Explanation</u>:
Single- source tracking is a post test which means this test is taken after a specific advertisement is out in the market. This method is basically used to know the reactions, and views about the products or services intended through those commercials. Consumers present in the television set or any supermarket checkout counter or any place where they go through this test, where the assigned people look after the consumers to know their reaction by tracing it from their face.
<span>Your vehicle must have a horn which can be heard from a distance of 200 feet.</span>
A they squeezed Germany from two directions.
D is the answer your welcome
