According to the perspective, dating couples choose either to stay committed or to break up by weighing the rewards of their relationship against its costs.

Te correct answer to fill in the blank space is exchange.

According to the exchange to the prespective, dating couples choose either to stay committed or to break up by weighing the rewards of their relationship against its costs.

Explanation:

Social exchange theory is the process of benefits  and cost being maximies in a relationship.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.