A.
not a, since these civilizations were known for beautiful architecture
B.
true
C.
true, but these are not the only possible forms
D.
true (i think)
....so b and c.... and POSSIBLY d
Relative scales<span> are </span>scales<span> that share the same set of notes — much like you have DNA in common with your relatives. Every major </span>scale<span> has a </span>relative<span> minor </span>scale<span>, and every minor </span>scale<span> a </span>relative<span> major. For example, the C major </span>scale<span> and the A minor </span>scale<span> are </span>relative scales<span>.</span>
This document should help you understand more and explain!
http://file.scirp.org/pdf/CE20120200003_78369835.pdf
Hope this helped!
:)
