Goldin finds that the gender hourly wage gap is... (a) mainly due to within-occupation differences. (b) equally due to within- and between-occupation differences. (c) mainly due to between-occupation differences. Goldin argues that a primary reason women earn less per hour than men is that women... (a) are disproportionately likely to be caretakers and have tight time constraints. (b) are disproportionately likely to work in low-paying occupations. (c) tend to be disproportionately passive in the work place. - One piece of evidence supporting this argument is that the wage gap is ... (a) larger among single non-parent females (b) smaller among single non-parent females. (c) smaller among STEM workers