Using GSS2008 Data, We Investigate the Relationship Between Sex (Coded

Using GSS2008 data, we investigate the relationship between sex (coded Male=0, Female=1) and income. We get the following arrows and betas for a path model (all betas are statistically significant) :
Beta for arrow from sex to income: -.17
Beta for arrow from sex to hours worked: -.26
Beta for arrow from hours worked to income: +.26
What percentage of the total effect of sex on income is indirect?

A) 17%
B) 24%
C) 29%
D) 71%