Statement (I): The efficiency of a boiler is more if it is provided with mechanical draught rather than with natural draught.
Statement (II): Natural draught is very costly but highly efficient.1
Both statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
2
Both Statement (I) and Statement (II) are individually true but statement (II) is not the correct explanation of Statement (I)
3
Statement (I) is true but Statement (II) is false
4
Statement (I) is false but Statement (II) is true