Was it precipitated by the masses spontaneously as per Marxist doctine or was it done by a group of professional revolutionaries.
So it's basically just explain or evaluate (it doesn't have one of these key words in it...) the causes of the revolution. But just explain or argue that it wasn't popular (supported by all the masses) rather it was the Bolsheviks going alone.
It was Sukhanov or someone with a name like that who said 500 well armed troops could have foiled the Bolshevik plot - and no one came along and broke it up...