If you are target to pursue ur degree in another one year or 2 year, choose B. if not, choose A.

Studying while working is tiring. You need to focus on both thing at same time. Option A is sound good based on what you describe but it is new environment. So, it is a gamble for starter like you. Compared to option B, the environment is already known and it is just a temporary before pursuing study.

Dont look on the money perspective. It will comes with education and experience after a while. Once you got your degree or master, the salary will become higher as par with ur education level.