### Tell us what’s happening:

Not sure what the error is. Instructions are as follows. Add one last node, `D`

, which is connected with `A`

and `C`

. Modify your dictionary to represent this structure. Again, use a list to represent multiple connections.

### Your code so far

```
/* User Editable Region */
my_graph = {
'A': 'B',
'B': ['A', 'C'],
'C': 'B',
'D': ['A', 'C']
}
/* User Editable Region */
```

### Your browser information:

User Agent is: `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36`

### Challenge Information:

Learn Algorithm Design by Building a Shortest Path Algorithm - Step 14