Year, 1960 is when Congo gained its independence.
We can predict that Serena's reinforced behavior will extinguish c. rapidly
Explanation:
Continuous positive reinforcement makes the person receiving the praise to expect praise for whatever they do which is not something that a child should be getting used to at the young age as it makes them not persevere in the things they are doing.
Serena will probably stop working on art as soon as this reinforcement is stopped as she is so used to invariable praise that she will come to expect it and when she does not get it she will lose motivation.
The answer is: [D]: "<span>receives the usual or placebo treatment" .
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