3 students wrote expressions of their dry erase boards.

Student 1 - (5r - 3s +1)


Student 2 -5r + 3s + 1


Student 3 -5r + 3s - 1


Which of these students wrote equivalent expressions?

A. Student 1 and Student 3

B.Student 2 and Student 3

C. Student 2

D. Student 3