Vasily states that−6(5g−7h+9−10g) can be rewritten as−30g+42h−54
.

Which of these explains whether Vasily is correct?

A
Vasily is not correct. He should have rewritten the original expression as −6(−5g−7h+9)
and then as 30g+42h−54
.
B
Vasily is correct. He can rewrite the original expression as −6(−5g−7h+9)
and then as −30g+42h−54
.
C
Vasily is correct. He can rewrite the original expression as −6(5g−7h+9)
and then as −30g+42h−54
.
D
Vasily is not correct. He should have rewritten the original expression as −6(5g−7h+9)
and then as 30g−42h+54
.