Assertion (A) : Human behaviour is affected by many variables.
Assertion (A) : Human behaviour is affected by many variables.
Reason (R) : It can be very easy to study in the laboratory.
A) Both A and R are false
B) Both A, R are true. R is correct ex-planation for A
C) Both A, R are true, but R is not a correct explanation for A
D) A is true but R is false
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