What Was France's Gr Eatest Concern During the 1920s

What was France's gr eatest concern during the 1920s?

A) The shortage of marriageable men left after the country's loss of about 1.5 million men.
B) Whether Germany was going to pay France the money due to them.
C) That people in the seized territories of Alsace and Lorraine might demand a referendum to see if they wanted to belong to Germany or France.
D) Being in the unenviable position of fearing Germany's strength but feeling that no matter what Germany did, another war was out of the question.
E) Whether its people felt "French enough" to fight off German aggression.