A、They had killed civilians and destroyed basic facilities. B、They covered the whole nation of Syria C、They attempted to destroy

The campaign group Amnesty International says it has evidences that Russian air strikes in Syria since September have killed hundreds of civilians, causing widespread destruction to basic facilities. Amnesty suggests the strikes are in violations of international humanitarian law and accuses Russia of attempting a cover-up. After interviewing witnesses, doctors and human rights groups, Amnesty reports that homes and hospitals were hit as well as a market and a Muslim building. In most cases, the location and timing of the attacks correspond with Russian defense ministry reports on air strikes though it says it was targeting so-called IS militants. Despite dropping thousands of bombs in Syria, Russian officials have never acknowledged causing any civilian casualties there. They were proud of their effective pinpoints strikes against terrorists and had dismissed previous claims to the country as part of an anti-Russian information war by the west.
3 What did Amnesty International say about the Russian air strikes?
4 What was Russia’s reaction towards civilian casualties?