Which of the following is/are not the definition of gains from trade?

A. It is the benefit individuals and countries derive from participating in international trade.

B. It is the gross benefit to economic agents that results from an increase in trade

C. It is the deduction of consumer surplus from producer surplus

D. It is the net benefit to economic agents that results from an increase in trade

E. It is the sum total of producer surplus and consumer surplus

Choose the correct answer from the options given below: