if the surplus unit would have arranged to supply funds had it had adequate information it follows that the flow of funds was impeded.공부하다 책에서 나온 문장인데요, had it had 랑 it follows가 각각 문장을 연결하는 역활을 하는거 같은데, 구조아시는 분 자세한 설명좀 부탁드릴게요.