SSC Steno Grade C and D 22 Dec 2020 Shift 1 Paper

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
Statements
No man is engineer.
No engineer is driver.
Some drivers are shop-keepers
conclusion
I. Some men are drivers,
II. No shop-keeper is engineer,
III. Some shop-keepers are not engineers.