Is Normal Delivery Possible With A History Of C Section Delivery?

Hello Doctor,
My wife had one baby 8 years ago with a C section birth. We are expecting another one.
As per the latest USG done today specifically to see if the scar of last C section is strong enough to go for normal birth, report says max width of the scar is 3.4 mm.
What should we do? She is in her 37 Week 2 days of pregnancy.

Thanks in advance for your help.
Regards,
Ashish