1 point 4. Researchers gave 20 toddlers Goldfish crackers and asked each of the
children to give one cracker away to a puppet. Later they gave each child
another cracker and asked them to give it to the puppet. Based on the
reactions of the children (studied on videotape) it was found that the
children exhibited more happiness when they gave their own crackers
away than when they gave away the cracker provide by the researcher. The
results indicate children experience happiness from giving. (PLoS ONE,
online June 14, 2012)

answer; john stuart mill's principle of utility is your answer; /// good luck

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.