The correct option is C 4
Scaling factor = Dimension of new shapeDimension of old shape
Length of old field = 40 m
Length of new field = 160 m
Ratio of lengths = 160:40
= 4:1
= 4
Width of old field = 22 m
Width of new filed = 88 m
Ratio of widths = 88:22
= 4:1
= 4
Hence, the scaling factor used is 4.