Its true just took the test.
Answer:
The education system of the song dynasty, allowed people from low social classes to have quality education and to obtain valued and well-paid professions.
Explanation:
The song dynasty education system allowed people to have full access to education and participate in examinations to become public officials, regardless of which social class the person belonged to.
This allowed people from lower social classes to rise their position through their professions, moving up the class and reaching higher levels within society, that is, education promoted social mobility.
A doesn't really sound right but B C and D do, so I'd go with E.
Installing active solar energy systems on all available, unshaded rooftop
space and positioning them to face south.
<h3>What is a Solar system?</h3>
A solar system usually comprises of panels which help to collect solar
energy from the Sun and convert them to other forms of energy such as:
The Passive system optimizes the use of heat or light directly from the sun
while the active systems converts the sun's energy into a more usable form
such as electricity. It is also best to position the panels to face south
because the Sun is found at this region thereby encouraging maximum
trapping of solar energy.
Read more about Solar system here brainly.com/question/19483420
