To use itr 4 or itr 4s

Dear Sirs,

I am providing accounting service to the following persons

01) Person receiving income from stitching classes

02) Person receiving income from stitching of clothes

03) Person receiving income from commission from insurance and providing services obtaining licence from RTO

04) Person receiving income from motor driving school.

All the assesses are different. I want to know whether I should file ITR 4 or ITR 4S.

Looking forward to your reply.

Thanks & Regards,

Tushar Parmar.