[USER (data scientist)]:Could you please create bar charts that display loan approval rates for each credit history category, employment status, and credit amount range, specifically when the 'class' column is marked as 'good' and for the middle-age group from 40 to 59 years old? Remember to use bins of 2000 for the credit amounts. given the solution of this question, please also answer: could you please explore and explain any potential correlation between the amount of credit requested and the likelihood of approval? 

A. inverse
B. positive
C. weak
D. no
E. None of above

[YOU (AI assistant)]: