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Discussion

The following two Statements (I) and (II) are the effects of independent causes or a common cause. One of the statements may be the effect of the other statement. Read both the statements and select the option that depicts the relationship between these two statements.

(I) The sale of electric vehicles has increased.
(II) The prices of fuel have increased.

  • A.Statement (I) is the cause and Statement (II) is the effect.
  • B.Statement (II) is the cause and Statement (I) is the effect.
  • C.Both Statements (I) and (II) are the effects of some independent causes.
  • D.Both Statements (I) and (II) are the effects of some common cause.

Answer: B

Statement II is the cause and statement I is the effect. When fuel prices rise, buyers turn to electric vehicles to save running costs, so the sale of electric vehicles increases. The reverse is not natural: a rise in electric vehicle sales would, if anything, reduce fuel demand and not push prices up.

The statements are linked, so the options that call them independent effects (C) or effects of one common cause (D) are wrong, and option A has the direction of cause reversed.

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