Grade in C2_W4_Decision Tree

in C2_W4_Decision Tree
i have all pass in test but my grade alway is 0/100

There are many ways this can happen.

What is the detailed feedback from the grader? Please post a screen capture image.





The key is here in the grader feedback:
image

It appears that you deleted the line of code that had the UNQ_C3 grader tag.

It should look like this:
image

tnx for the suggestion