Answer:
The answer is negative reinforcement.
Explanation:
In operant conditioning, negative reinforcement occurs when an unpleasant stimulus is removed after a behaviour is completed. In the example, the nagging will stop once the job has been done.
Negative reinforcement has been proved to be more effective than positive reinforcement (rewards).
Answer:
C) It is impossible to have identical twins of different sexes
Explanation:
Scientifically monozygous or identical twins are usually of the same sex unless in a rare case of genetic mutation where they develope into different sexes.
When the individual asked if they are identical twins, the first line of thought naturally will be to think if it is possible to have identical twins of different sexes
I think that it is Indirect