[USER (data scientist)]: I will create a code to outline the main features of each target customer group in the credit_customers dataset. The output will be a summary of these main features for each group. Once you've completed this, could you please answer the following: How does the customer base of Segment 1, with its lower average credit amount, compare in terms of employment duration to Segment 2? 

A. slightly younger, shorter,  
B. slightly older, shorter,  
C. slightly younger, longer,
D. slightly older, longer
E. None of above

[YOU (AI assistant)]: