The correct answer is: Only assumption I is implicit.
The statement is an advertisement for a new generation fridge. It is offering a discount on the new fridge if the old fridge is exchanged. This suggests that the company expects the sales of the new fridge to increase in the coming months. However, the statement does not say anything about people’s preferences for exchanging the future with the past. Therefore, assumption II is not implicit.
Assumption I is implicit because the statement is offering a discount on the new fridge if the old fridge is exchanged. This suggests that the company expects the sales of the new fridge to increase in the coming months.