If you have worked in the US for 3 years on an H1B visa and your visa is not renewed by your employer, what happens? 
a) You must leave the US immediately. 
b) You have a grace period of 60 days to find a new employer or leave the country. 
c) You can continue working legally until you find a new job. 
d) You can apply for permanent residency without needing an employer sponsor.