More than any other single event in the history of Europe, the Spanish Inquisition, instituted by Ferdinand and Isabella and controlled by the Spanish kings, is remembered for the burning of persons condemned as heretics.
A- More than any other single event in the history of Europe, the Spanish Inquisition, instituted by Ferdinand and Isabella and controlled by the Spanish kings, is remembered for the burning of persons condemned as heretics.
Correct
B- More than any single event in the history of Europe, the Spanish Inquisition, instituted by Ferdinand and Isabella and controlled by the Spanish kings,
was remembered for the burning of persons condemned as heretics.
The act of remembering is still on effect, so the use of past tense is incorrect.
C- The Spanish Inquisition, instituted by Ferdinand and Isabella and controlled by the Spanish kings,
more than any event in the history of Europe, is remembered
The red part is a misplaced modifier. In this option , it suggests that the act of instituting and controlling the Spanish Inquisition is more than any event in the history of Europe and that is not the intended meaning of the original sentence
D- More than any other single event in the history of Europe, the Spanish Inquisition, instituted by Ferdinand and Isabella and controlled by the Spanish kings,
are rememberedThe Spanish Inquisition is compared to singles events , so it is a single event and is therefore singular.
E- The Spanish Inquisition, instituted by Ferdinand and Isabella and controlled by the Spanish kings,
are remembered more than any single event in the history of Europe
Same error as in D