The correct answer is: Only assumption II is implicit.
The statement “X air-conditioner – the largest selling name with the largest range.” does not say anything about whether X air-conditioner is the only one with wide variations, so assumption I is not implicit. However, the statement does say that X air-conditioner is the largest selling name, which implies that there is a demand for air-conditioners in the market. Therefore, assumption II is implicit.
Here is a more detailed explanation of each option:
- Option A: Only assumption I is implicit. This option is incorrect because assumption I is not implicit.
- Option B: Only assumption II is implicit. This option is correct because assumption II is implicit.
- Option C: Either I or II is implicit. This option is incorrect because assumption I is not implicit.
- Option D: Neither I nor II is implicit. This option is incorrect because assumption II is implicit.
- Option E: Both I and II are implicit. This option is incorrect because assumption I is not implicit.