Answer: C. Reward Jamal for not interrupting her during a phone call
Explanation: Operant conditioning is a learning process which is used to adjust or shape the nature or strength of an child's attitude or behavior either through reinforcement or punishment. Operant conditioning is used to explain changes which occur in the strength or ability to repeat a certain behavior due to the consequences of such behavior or action. Reinforcement increases the strength of a behavior and increases the likelihood of future occurrences while punishment decreases the strength of an action and decreases the likelihood of future occurrences.
In the scenario above, If Jamal is rewarded for not interrupting a phone call, the behavior will be strengthened and increases the likelihood of future occurrence, that is, not interrupting phone calls in the future.
biopsychosocial approach
biological psychological, and social factors affect people differently. All three of these play a role in how a person develops physically, mentally, and how they'll develop socially.
I think it is the one by Europe
The US currency went off the gold standard.
The Great Depression was causing people to hoard gold. So using gold to back the dollar was no longer feasible because gold was untenable. Franklin Roosevelt made the decision to take the US off of gold.