Answer: option C
Step-by-step explanation:
The act of lobbying is to seek influence, some are true lobbying some are for personal grounds, but trade association are respected associations that people seeks to add value too, they dont give room for lobbying that is why they create a chance to seek to join them, they don't favour some one over another ,they only respect there members and seek the growth of each member, so the third option does not state a legal right of trade associations.