I think option A is the right answer
Answer:
Reading comprehension strategies are helpful to me because it's very important to understand and get as much information out of my reading as I possibly can. I will apply these strategies by focusing on my reading, marking and writing down where I have questions, need to look into an area more, or don't understand a concept or word. I will also highlight areas that are most important and summarize with a short paragraph after I finish reading each section. I will apply these reading strategies because I want to get the most out of my reading and retain as many ideas or information as I'm able to do.
He met a hubshi girl who seemed interested with Santosh. Furthermore, he got English lesson by her and their relationship became closer. This event makes Santosh realizes of his existence after he feels alienated by his surrounding before. Since then, he took so much care of his physical appearance.
The last sentence is correct, because the other ones either had periods in the middle or too many commas in them.