Answer:
B. Unification of the empire
Explanation:
I would pick B. because, in order to have an empire, you need all three of those. D makes no sense because you can't really put those two together. A doesn't really connect either. The only relation is that they have a powerful army.
Hope I helped :)
England was changing its attitude towards colonies and France was changing its attitude towards colonies.
B. places a great deal of pressure on himself.
