(I) All domestic airlines increased the fares in all sectors with immediate effect.
(II) Railways increased the fare of all its classes with immediate effect.
If statement I is the cause and statement II is effect
If statement II is the cause and statement I is effect
If both the statements I and II are independent causes
If both the statements I and II are effects of independent causes
If both the statements I and II are effects of some common causes
If both the statements I and II are effects of some common causes