A convex security mirror has a radius of curvature of 1.0 m. A woman 1.6 m tall stands 4.0 m in front of the mirror. Determine the height and nature of her image.
a) 0.23m, inverted, in front of the mirror
b) 0.18m, inverted, behind the mirror
c) 0.18m, erect, behind the mirror
d) 0.32m, erect, behind the mirror