【正确答案】 1、a better form of communication in all relationships    

【答案解析】根据题干中In the future可知这是对将来的一种展望，具体到文章中一般是在最后一部分，故可定位于最后一段。根据最后一段第二句Someday we may understand the kind of communication that exists between mother and child and be able to expand on that knowledge to a better form of communication in all relation ships可知本题答案。