Answer:
create a connection with the reader
Step-by-step explanation:
When a writer mentions common name brands when introducing a passage, it is likely that he wishes to make the topic relatable to the audience. This is because the audience will likely be familiar with those brands. This way, the author of the passage makes a connection with them.
The use of common names also has the additional benefits of helping the reader to easily remember the issue discussed and also apply them to their local environments.