Post

@PythonPr none of the above,
option a, c, d all the the same.
answer would be: [ 'a', 'b', 'c']
English

@PythonPr Answer ['a', 'b', 'c'].
When you use += on a list, Python treats it like the extend() method.
English

@PythonPr ['a', 'b', 'c']
+= -> extend
x += 'c' or x.extend('c')
English



















