单选题 Freud derived psychoanalytic knowledge of childhood indirectly; he ______ childhood processes from adult memory.

【正确答案】 A

【答案解析】[解析] 各选项的意思是：reconstructed重建，重现，重整；incorporated包含，吸收，把……合并；obstructed阻塞，阻碍；fostered培养，促进。根据句意可知，答案是A。