Rewrite 0.169 in expanded form using powers of ten. a) (1×103) + (6×102) + (9×101) b) (1×101) + (6×102) + (9×103) c) (1×10-1) + (6×10-2) + (9×10-3) d) (1×10-3) + (6×10-2) + (9×10-1)