Which of the following is an off-season inter-cultivation?

Correct option is E

The correct answer is (e) None of these. Off-season intercultivation refers to the cultivation practices performed between the main crops during the off-season. Options (a) Conventional tillage, (b) Clean tillage, (c) Conservation tillage, and (d) Mulch tillage are all types of tillage practices, but they do not specifically refer to off-season intercultivation. Therefore, the correct answer is (e) None of these, as none of the provided options explicitly represent off-season intercultivation.