The answer is: A. Ivan Pavlov
Pavlov was the researcher who first popularized the classical conditioning (where a certain conditioned response is created by associating a certain situation with a conditioned stimulus)
Counterconditioning was developed in order to reverse or reduce the effete of classical conditioning (usually carried out by enforcing positive reinforcement to the subjects)
Well......
1. Obviously if your born into a family.
2. If you marry into a family.
3. If your adopted.
Hope this helps!
Measures of variability: numbers that describe the diversity or dispersion in the distribution of a given variable.
