What was the significance of the plane selections made by the terrorists on september 11?
all four planes were leaving from the same airport, so the terrorists could meet for planning just before boarding.
all four planes were traveling long distances, so they would have significant fuel on board to burn in the crashes.
all four planes were from the same airline, so the terrorists could make it look like the acts were done by domestic terrorists.
all four planes had surveillance cameras in the wingspanpits, so the hijackers could see if anyone tried to stop them.

Which statement describes the central idea of the text? a. while the nigerian government has the wealth to improve the conditions in prisons, they continue to view it as a low priority. b. nigerian prisons neglect the physical and mental health of their prisoners by failing to provide them with basic necessities and services. c. the inhuman conditions in nigerian prisons could easily be improved, but the environment is considered part of prisoners' punishment. d. conditions in nigerian prisons are slowly improving as non-government organizations and citizens are providing much-needed equipment to the prisons.