Please give the full question.
Even though you didn't give us the fragment with the comma slice, it isn't really necessary here as we can answer just based on these 4 options here. All options apart from the second one are correct - only the second option doesn't fix the mistake of the comma splice, whereas the other options do but connecting the sentences properly.
Answer:
Try and practice more in that subject.
Explanation:
Same happened to me but except mine was lower. As soon as I saw my results, I started to change my mood towards work and I practiced more of the lessons I had failed in. I started going higher and yeah, hope this works for you too:)
It is a statement of opinion best describes the statement
