Most drugs have three different kinds of names. which of them belongs to a specific manufacturer?

There are choices for this question, namely:

chemical name 
generic name 
brand name 
research name

The correct answer is "brand name". The brand name is the name of the drug that is tied to the specific manufacturer. The generic name of the drug is the approved name of the drug which corresponds to its drug class and specific mode of actions. The chemical name, as the name suggests, comprise of the detailed chemical makeup of the drug.