Hotpoint pop up from inside bottom sprayer arm broken

I have attached a picture of the part that broke on the dishwasher. Does anyone know if this can be repaired, if so, what part(s) should be ordered and how do I remove the broken part?

PS I noted the DW as more than 10 years old, actually I do not know the age but since everything in the house was original I figured the DW probably is older as well.

Thanks!
Hotpoint model HDA3740G02sa.jpg (40.0 KB)

Here are your parts
Replacement parts for General Electric HDA3740G02SA Dishwasher | AppliancePartsPros.com

And here is the part. If you click on the picture a new page will open with more views and a Q&A how to replace it.
AP2039850