Correct option is A
Statement:
'Smoking is injurious to health' is a warning printed on cigarette packets.
Assumptions:
Assumption I: People read the printed matter on cigarette packets.
The purpose of printing the warning assumes that people will read it.
Therefore, this assumption is implicit.
Assumption II: People take note of the warning.
The intent behind printing such a warning is that people will not just read it but also take note of it to possibly change their behavior.
However, whether people actually heed the warning is not guaranteed or implied in the statement.
Therefore, this assumption is not implicit.
So that, assumptions I is implicit.
Thus, correct option is (d).