- ANeither I nor II is implicit
- BOnly assumption II is implicit
- CBoth I and II are implicit
- DOnly assumption I is implicit
Step-by-Step Solution
A written notice is put up only if the intended readers can read and follow it, so I is implicit. A fine is announced only because it is expected to deter late returns; if it changed nobody's behaviour, announcing it would be pointless — so II is implicit as well.
Answer: C) Both I and II are implicit