What is 68,297 written in expanded form? (1 point)
a
6 x 100,000 + 8 x 10,000 + 2 x 1,000 + 9 x 100 + 7 x 10
b
6 x 10,000 + 8 x 1,000 + 2 x 100 + 9 x 10 + 7 x 1
c
6 x 60,000 + 8 x 8,000 + 2 x 200 + 9 x 90 + 7 x 7
d
6 x 60,000 + 8 x 1,000 + 2 x 200 + 9 x 10 + 7 x 1