I’m guessing it wants you to fill in two major key signatures like D major and C major also with two minor key signatures like A minor and B minor. I picked those key signatures because A minor is the same as C major but it starts on A and D major and B minor is the same but it starts on B
Eu acho que a matéria de artes do Brasil é mais fácil
'masses'. <span>Musicians in the twentieth century were typically supported through patronage by the masses. All the other choices were more suitable with earlier centuries. </span>