单选题
It is difficult to comprehend, but everything you have ever seen, smelt, heard or felt is merely your brain's interpretation of incoming stimuli.
【正确答案】
A
【答案解析】[解析] 虽然这很难理解，但是你所看到、闻到、听到、感觉到的东西仅仅是大脑对于(外界)刺激的阐释(反映)。interpretation解释，阐明。explanation说明，解释；evaluation评价，估算；recognition认出，识别，承认；interruption打扰，干扰，中止。故答案为A。