Recent research suggests that single mothers with young children likely have indifference curves ...

Recent research suggests that single mothers with young children likely have indifference curves (wage on the vertical axis and risk of injury on the horizontal axis) that are
A) about as steep as indifference curves of single men, implying equally risky behavior by both groups.
B) steeper than indifference curves of married women with children, implying that single mothers take less risky but lower paying jobs.
C) flatter than the indifference curves of their own mothers, implying a generational shift in preferences for working.
D) flatter than indifference curves of married women without children, implying that single mothers will take risky jobs in order to feed their children.