In the endogenous growth model with human capital, an increase in the fraction of time accumulating human capital

A、Increasesthegrowthrateofhumancapitalandincreasesthegrowthrateofoutput.;
B、Increasesthegrowthrateofhumancapitalanddecreasesthegrowthrateofoutput.;
C、Decreasesthegrowthrateofhumancapitalandincreasesthegrowthrateofoutput.;
D、Decreasesthegrowthrateofhumancapitalanddecreasesthegrowthrateofoutput.