Statement-and-conclusion questions test whether each conclusion is a direct logical consequence of the passage, not whether it sounds plausible on its own. Section 5 of the Minimum Wages Act, 1948 can be reduced to two branches: a notification either names a commencement date or it does not, and each branch has its own consequence.
Because Section 5 explicitly builds in both the "date specified" and "no date specified" scenarios, and the two conclusions map onto these scenarios without adding anything extra, both conclusions are logically supported.
Hence, the correct answer is Both Conclusions I and II follow.