Three statements are followed by four conclusions numbered I, II, III and IV. You have to consider the statements to be true, even if they seem at variance from commonly known facts. Decide which of the given conclusions logically follow(s) from the given statements.

Statements:

1. No horse is a truck.

2. All carriages are scooters.

3. All scooters are trucks.

Conclusion:

I. No truck is a scooter.

II. All carriages are trucks.

III. Some trucks are scooters.

IV.  No carriage is a horse.