International student seeking help. Posting here as a last resort

[LEZZER]

I recently finished my first quarter exam and scored a GPA of 2.75. My GPA can never go below 3.0 since it causes a problem with my student visa status. This has been my first year studying in USA and I had to struggle a bit during first few months. I have been put on a hold by the committee and they have requested me to respond with an explanation of the cause of the low performance and how I will improve my grades here on out. I have worked extremely hard in the past quarter but still got a sub-par grades. I need some help on replying the officer with a convincing answer. If I don't do it ASAP, I'm in deep trouble. And no, I don't have any disease, or taken part in any extracurricular. I earnestly hope that someone would help me with this.

[GradSchoolTruther]

We aren't in a position to help you explain why your grades are below what is expected. 

[ExponentialDecay]

I mean, do you know why you got a bad grade? Was it your understanding of the material? Was it silly errors? Was it your language comprehension? What field is this, even?