The correct answer is: Only assumption I is implicit.
Assumption I is implicit because if A tells B that guests should be provided lunch, it means that A believes that lunch may not be provided unless told. Assumption II is not implicit because there is no evidence in the statement that A believes that guests will stay during lunch time.
Here is a more detailed explanation of each option:
- Option A: Only assumption I is implicit. This is the correct answer because assumption I is implicit, as explained above. Assumption II is not implicit because there is no evidence in the statement that A believes that guests will stay during lunch time.
- Option B: Only assumption II is implicit. This is not the correct answer because assumption I is also implicit, as explained above. Assumption II is not implicit because there is no evidence in the statement that A believes that guests will stay during lunch time.
- Option C: Either I or II is implicit. This is not the correct answer because only assumption I is implicit, as explained above. Assumption II is not implicit because there is no evidence in the statement that A believes that guests will stay during lunch time.
- Option D: Neither I nor II is implicit. This is not the correct answer because assumption I is implicit, as explained above. Assumption II is not implicit because there is no evidence in the statement that A believes that guests will stay during lunch time.
- Option E: Both I and II are implicit. This is not the correct answer because only assumption I is implicit, as explained above. Assumption II is not implicit because there is no evidence in the statement that A believes that guests will stay during lunch time.