Hannah theorized that sleep people behave in safer ways. she tested her theory by conducting an experiment. she manipulated the amount of sleep participants got and then tested their driving ability. hannah learned that participants who got more sleep were safer drivers. in this example, hannah's theory led her to
a)replicate research
b)solve a developmental problem
c)generate a discovery
d)change the behavior of many people
generate a discovery

Generate a discovery

Explanation:

Hannah's research generated the discovery that participants who got more sleep were safer drivers. The discovery was done by manipulating the participants' sleep patterns. She then tested their driving ability.

She did not replicate any research as the research was only hers, neither did she solve a developmental problem nor changed  the behavior of  many people. She simply stated a fact based on the results of her research and it's up to individuals to put the conclusions of the test into practise.

where is your diagram?

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.