Average Boosting Class or Helpful Class

I’m starting my 2nd year of Finance and I have a choice of an elective class.

I wanted to know which type of class would help me better in my situation, I currently have a 68% Average throughout all of my classes and was debating either taking some easy online class (like psych etc) to boost the GPA or taking linear algebra which might lower my average overall but look better on my transcript.

I’m going to get my MBA afterwards and am not sure what would help me more when applying for the graduate schools.