Remove duplicates from a list in c#

Question

I have a category in my object how can I remove duplicates from each category if there is a duplicate existence based on each category in the list concept.

Please see my requirement below.

```
Category    Name
-------    ------- 
A           1
A           1 
A           2 
B           1 
B           1
B           3
```

Final Result should be like 

```
Category    Name
-------    ------- 
A           1
A           2 
B           1 
B           3
```