Match the following:

Assertion (A): The conductivity of an n type semiconductor increases with increase in temperature and increase in density of donor atoms.

Reason (R): Diffusion of carriers occurs in semiconductors.

1. The values of a structure variable can be assigned to another structure variable of the same type using the assignment operator.
2. One structure can be nested within another structure.
3. A variable structure can also be passed to a function.

Assertion (A): Rochelle salt and Barium titanate are both ferroelectric.

Reason (R): Ferroelectric materials exhibit hysteresis effect.