Respuesta :
The correct answer would be D) Whatever.
Whatever he did to study for the final exam must have been helpful; his grade improved from a B to an A.
Whatever he did to study for the final exam must have been helpful; his grade improved from a B to an A.
I believe it's D (whatever).
Whatever he did to study for the final exam must have been helpful; his grade improved from a B to an A.
Whatever he did to study for the final exam must have been helpful; his grade improved from a B to an A.