Answer: Option(a) is correct option
Explanation:
As per theory of Lepper and colleagues (1973), rewards play a major role in motivation of a student for performing activity as compared to non-rewarding activity.They describes about undermine of performance due to presence of reward in certain time and situation.
According to the question, Joseph will tend to paint in future because he has seen it as the method of earning money as reward rather than making it a passion or enjoying painting.He is interest in money majorly
Other options are incorrect because Joseph becoming an artist in future, still carry out painting passion even if aunt stops rewarding him and money rewarding painting are considered better than no-money rewarding painting are not the outcome of scenario. Thus, the correct option is option(a).
The soviet union lost the most lives during world war 2