15. Sven: Trade unions are traditionally regarded by governments and economists as restraints of trade, working against the complete freedom of the economy, but I believe that unions are indispensable since they are often the worker’s only protection against exploitation.
Ravi: I don’t agree. The exploitation of the workers and their work is a normal part of ordinary trade just like the exploitation of natural or other material resources.
Sven and Ravi will not be able to resolve their disagreement logically unless they
(A) define a key term
(B) rely on the opinions of established authorities
(C) question an unproved premise
(D) present supporting data
(E) distinguish fact from opinion
My ans is A
Sven: trade union is the restraint to trade BUT it is indispensable. Trade union is the protection against exploitation.
Ravi: disagree. Exploitation is normal for trade.
IMO, both has to define the key term of "trade", specifically "Whether the exploitation is normal for trade". If so, they can run into the conclusion that whether the trade union is regarded as the restraint for trade and whether it is indispensable.
I am not born to be a GENIUS nor a GMATTER. If you are struggling, we are in the same boat. Fight to the last!!