Which would make an ineffective thesis for an essay on the causes of French revolution

An ineffective thesis statement on the causes of the French Revolution would be "The frivolous spending of the monarchs lead to the common man losing money." This would be ineffective as it fails to create a bigger picture and does not go into proper depth. More detail is better, as it leads to a more subjective thesis.

If this is a true or false question i would say true

Internal combustion engines