For a cyclic process \[A\to B\to C\to A,\] the following information is given Path \[\Delta Q\](Heat supplied) \[\Delta U\] (Increase in internal energy) Work done by system on surrounding \[A\to B\] 600 J 200 J 400 J \[B\to C\] - 100 J 100 J - 200 J \[C\to A\] - 100 J - 300 J 200 J Calculate the heat of the cycle and efficiency of cycle.

• A. 400 J, 100%
• B. 600 J, 66.67%
• C. 400 J, 66.67%
• D. 600 J, 100%