Compared to the upper paleolithic, mousterian burials are more complex, usually containing hundreds of tools burials usually contain several individuals, precisely oriented relative to each other tools are usually more sophisticated tools are made of materials transported (traded) over long distances none of these

I believe the answer is none of these. The mousterian is defined by stone-knapping known as levallois. Mousterian burials are supported by morturt behavior and are not complex. The burials represented the individual who are singled out for treatment by mortuary. Most burials were done in caves and shelters where adults were mostly buried at the center.