This question has statement I and II. Of the four choices given after the Statements , choose the one that best describes the two statements.
(1) Statement- I is true , Statement- II is true , Statement-II is a correct explanation of Statement-I
(2) Statement-I is true , Statement- II is true .Statement- II is not a correct explanation of Statement-I
(3)Statement- I is true ,Statement- II is false.
(4)Statement- I is false ,Statement- II is true.
Statement- I:Efficiency of an engine with sink temperature of zero kelvin is `100%`
Statement-II : Keeping the sink at ice point with the source at `100^@C` will bring `100%` efficiency.

Answer

3