Concept:A trade association is an organisation formed by businesses in the same industry to protect their common interests and promote the success of their trade.
Explanation:The main objective of a trade association is to promote and boost the trade of its members.
It does this by providing a common platform where members can exchange ideas, share views, and discuss issues affecting their industry.
The association also represents the interests of its members before the government and other public bodies.
Although it may sometimes help members with legal matters, credit facilities, or protection from unfair treatment, these are not its primary purpose.
Its central focus is the growth and advancement of members' business activities.
Answer:B. boost the trade of its members