Concept:Manufacturers of the same type of product come together to protect and promote their shared business interests.
Explanation:Computer manufacturers are all producers of computers.
When producers in the same industry join together, they form a producer association.
Such an association helps members tackle common problems, set industry standards, and promote their products.
A thrift society is a savings group, a chamber of commerce represents mixed businesses in a locality, and a consumer association protects buyers.
None of these fits a group of computer manufacturers as well as a producer association does.
Answer:A. producer association