From the three statements (A-C) and four conclusions (1-4) given below, identify the conclusions that could be logically inferred.

Statement A : Some firefighters are drivers.

B : No driver is a cleaner.
C : All cleaners are firefighters.

Conclusion: 1 : Some drivers are firefighters.
2 : All firefighters are cleaners.
3 : No cleanser is a driver.
4 : Some cleaners are drivers.