Which of the following sentences is punctuated correctly?
AIn the beginning, it was all about proving the theory wrong, but now it's about showing both sides.
BIn the beginning, it was all about proving the theory wrong, but, now it's about showing both sides.
CIn the beginning it was all about proving the theory wrong but, now it's about showing both sides.
AIn the beginning, it was all about proving the theory wrong, but now it's about showing both sides.
BIn the beginning, it was all about proving the theory wrong, but, now it's about showing both sides.
CIn the beginning it was all about proving the theory wrong but, now it's about showing both sides.