Does the sentence "When a central Abitur examination was established in the State of North Rhine-Westphalia, it was revealed that Gesamtschule students did worse than could be predicted by their grades or class rank." provide a valid answer to the question "Which German politician defended comprehensive schools?"

A: no

Does the sentence "Both classical and popular musicians have experimented in recent decades with electronic instruments such as the synthesizer, electric and digital techniques such as the use of sampled or computer-generated sounds, and instruments from other cultures such as the gamelan." provide a valid answer to the question "What type of musicians besides classical have experimented with electronic instruments?"

A: yes

Does the sentence "Tibetan Buddhism is a primary influence on the art, music, and festivals of the region." provide a valid answer to the question "What is the economy of Tibet dominated by?"

A: no

Does the sentence "DiFruscia's campaign headquarters shared the same building as Kerry's." provide a valid answer to the question "Who did Kerry share a campaign headquarters with?"

A:
no