Time study diaries that covered almost 40 years compared the changes in the amount of time women and men spent in household work, and they found:
a) Women are spending fewer hours in housework. Men are spending more hours in housework.
b) Women are spending more hours in housework. Men are spending fewer hours in housework.
c) There is no significant change in the time spent on household work by either women or men.
d) The study did not provide conclusive results regarding changes in household work.