A、bomb-making videos B、guns and bombs C、poisonous gas-making equipment D、bomb-making equipment D

British investigators have launched conspiracy to commit murder charges against 11 of the 23 suspects in the alleged plot to blow up trans-Atlantic airliners. Investigators say the alleged plotters had bomb-making equipment and they had recorded so-called "martyrdom" videos.
  Eight people are being charged with conspiracy to commit murder and preparing to engage in terrorism, a new offense under an anti-terrorism law passed earlier this year.  Three others were also charged with terrorist offenses. Eleven other people remain in custody, while authorities decide whether to charge them now or seek additional time to detain and question them. One other person detained, a woman, was released without charge. Metropolitan ’Police Deputy Assistant Commissioner Peter Clarke, who leads police counter terror efforts, said Monday the investigation is far from over.
  "The enormity of the alleged plot will be matched only by our determination to follow every lead and line of inquiry." Authorities have until Wednesday to get the judge’s permission to continue to hold the remaining suspects.