What is the loss of stress after prestressing process is complete ?

Thanks for the invite, I'm waiting for answers relevant experts

IAPOLOGIZE FOR THE ANSWER AND THANKS

E- All of the above

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Actually don't have clear answer...prefer to wait for answers by professionals

Being a mechanical engineer, I will follow and wait for more answers to learn.

.............................E .....................

thanks for invition ,,,,,,,,,,

my choice is option E 

I think option E ------------

The answer is letter E, all of the above as I read from Losses of Prestresed from Prestressed Concrete.