Concept:A body that brings together businesses in the same industry to safeguard their common interests is called a trade association.
Explanation:An association of this type is formed by companies or firms that are engaged in similar types of trade or business.
Its primary aim is to protect the common interests of its members.
It represents members in negotiations with the government, suppliers, and other external bodies.
It also provides useful information and support to businesses in the same line of trade.
A consumer association protects buyers, not business owners.
A trade union protects workers, not business firms.
A chamber of commerce represents all businesses in a locality, not just one line of trade.
Therefore, the correct term for a body that protects the interests of members in the same line of business is a trade association.
Answer:C. trade association