<span> The answer is C. a lower demand for crops.</span>
The city of Chang'an can best be described as. a flourishing cultural and commercial center. the government in the song period was based on. the merit system.
21 = veintiuno
22 = veintidós
23 = veintitrés
24 = veinticuatro
25 = veinticinco
26 = veintiséis
27 = veintisiete
28 = veintiocho
29 = veintinueve
30 = treinta
31 = treinta y uno