Jalisa works part-time in a high-status, high-paying job and…

Jalisa works part-time in a high-status, high-paying job and spends each afternoon with her kids when they come home from school. Her husband, Brad, works full-time as a freelance artist and makes very little money; he only reads to the kids at bedtime. Based on the available information, which theory or concept seems to BEST describe why Jalisa does more childcare than Brad?