Which was a main cause for the Austro-Hungarian Compromise of 1867?

Question

the will of Austrian and Hungarian citizens to form a unified nation
Austria’s desire to solidify its power after a military defeat to Prussia
the fear of another French military invasion following the Napoleonic Era
Hungary’s growing strength that allowed it to dominate
Would this be D?

Answer 1

https://www.google.com/search?q=Austro-Hungarian+Compromise+of+1867&oq=Austro-Hungarian+Compromise+of+1867&aqs=chrome..69i57j69i60.1736j0j7&sourceid=chrome&ie=UTF-8

Since nothing in here is numbered or lettered, please read some of the search results to figure out if you're right or not.

Answer 2

It's B :)