Viết lại câu cho nghĩa không đổi

Hi Daniel, 
a. You really helped me focus on improving my writing skills.
b. Thanks a lot for the tips you gave me during our last study session.
c. It was challenging, but I feel much more confident now.
d. I still need some practice, though, especially with grammar.
e. Hope we can meet up again soon for another session!
Best, Laura
A. b-a-d-c-e B. b-c-a-d-e C. b-a-c-d-e D. a-b-c-e-d