What was the Eiffel Tower constructed to commemorate?
A) is incorrect.
The Eiffel Tower was built by Gustave Eiffel in 1889 to commemorate the 100th anniversary of the French Revolution. It was supposed to be a temporary structure to be removed in 20 years.
The Eiffel Tower was built by Gustave Eiffel in 1889 to commemorate the 100th anniversary of the French Revolution. It was supposed to be a temporary structure to be removed in 20 years.