Lilly's 12-year-old son used to get out of bed easily and early on school days, but lately he has been hard to wake. While reading a parenting book, Lilly came across the theory of "delayed phase of preference," in which sleep patterns shift when young people start to go through puberty. In this example, a theory helped Lilly .
Select one:
A. generate a discovery
B. change her own behavior
C. gain practical guidance
D. design an experiment

a.indigo and cochineal

b.animal hides

c.silver and gold

e.cacao beans and sugarcane

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.

no because it could make the world a terrible place to live in.