The correct answer is: Only assumption II is implicit.
The statement is about the taste of two coffee powders, and does not mention anything about the amount of advertisement they receive. Therefore, assumption I is not implicit.
Assumption II, however, is implicit. If the coffee powder of company X is quite better in taste than the much advertised coffee of company Y, then it is likely that some people will be tempted to buy the coffee powder of company X because of its good taste, even though it is not advertised as much.
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.