I think it's B :) The others don't make much sense to me
Answer:
I'm pretty sure its the roman arch
Explanation: sorry I'm wrong
Both mobilizations were important, but the industrial one seems to have greater weight, since this influences the population in general, and the military affected only where a conflict developed, it mobilized all available resources to obtain the highest military capacity in a specific area, but the industrial one had the capacity to produce what was necessary for war, as a fundamental and determining element in the outcome.
The answer to the question above is to reduce air pollution in Mexico city.
In Mexico city, residents have been encouraged to use bicyles in order to reduce air pollution in the city. Using bicycle also helps reduce traffic congestion and decrease time spent on traveling to their destinations.
That would be choice C. the index fossils.
I hope this helps you! :)