Which excerpts is part of the exposition of the plot in things fall apart? select all that apply.

a-"i have learned that a man who makes trouble for others is also making it for himself."

b-"okonkwo was ruled by one passion—to hate everything that his father unoka had loved. one of those things was gentleness and another was idleness."

c-"some years the harmattan was very severe and a dense haze hung on the atmosphere. old men and children would sit round log fires, warming their bodies. unoka loved it all, and he lived the first kites that returned with the dry season, and the children who sang songs of welcome to them."

d-"the priestess’ voice came at longer intervals now, but its vigor was undiminished."