Use of differnet radio buttons in QA07

Hi All ,

What the basic difference between below radio buttons in qa07 :

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Lot creation only : it will create lot only

To insp. stock at lot creation : It will create lot and post qty from un restricted to restricted

Block Batch at lot creation : It will create lot and block batch

but what's the use of To insp. stock at inp. date and block batch at inspection date .and how they are different from options above them

REgards