Which composer wrote the song cycles Kindertotenlieder and Das Lied von der Erde?

Which of the following best describes the demands made on the performer in this selection?

a) exceedingly easy b) moderately difficult c) exceedingly difficult throughout d) alternating easy and difficult

What effect did the alliance of the Cumaean Greeks and Hieron I of Syracuse have on Etruria?

What will be an ideal response?