Dear expert,
I hope that you all are fine 
Today, I am very confused about improving DA of my client website.
For example: He has a domain www.abc.com
and he wants me to build a backlinks on different internal pages like
www.abc.com/service-1
www.abc.com/service-2
www.abc.com/service-3
If i build high quality links on internal pages (service pages) rather than building links on main domain (home page). Does the Domain Authority will increase
OR
I have to build links on Main page to boost the DA
I am hoping a positive reply from your side
Thanks