Directions: The following questions are accompanied by three statements A, B and C. You must determine which statement(s) is/are sufficient/necessary to answer the questions and mark your answer accordingly.

Trader bought two markers A and B at different cost prices and sold at different selling prices. By selling 1 marker of both type A and B, whether the trader is in profit or in loss?

A) Cost price of 3 items of A is equal to selling price of 4 items of B and cost price of 5 item of B is equal to selling price of 6 item of A.
B) Trader earns 25% profit on selling 2 items of A and 10% loss on selling 10 items of B and Cost price of 3 items of A is equal to selling price of 4 items of B.
C) Profit earn by selling 3 items of A is equal to loss occurs on selling 1 items of B.