Heavy and prolonged use of cocaine can lead to psychological dependence, the symptoms of which are similar to narcotics dependence.

1.
the symptoms of which are similar to narcotics dependence.

2.
the symptoms of which are similar to those of dependence on narcotics.

3.
which in symptoms are similar to those of dependence on narcotics.

4.
which has the symptoms similar to those of narcotics dependence.

5.
which has symptoms similar to narcotics dependence.

Source - IMS Test Series
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Any suggestion please, why B is correct. Chose D on account of parallelism and sentence structure made more sense to me than B..

csaluja

Wouldn't then be symptoms of cocaine=symptoms of narcotics

Dependence changes the meaning here to be narcotics addiction which should be same as addiction of cocaine

Is it not so?

Can you kindly resolve?

Thanks