Charles II (29 May 1630 – 6 February 1685) was king of England, Scotland and Ireland. He was king of Scotland from 1649 until his deposition in 1651, and king of England, Scotland and Ireland from the restoration of the monarchy in 1660 until his death.
The main way in which a desire to build a stronger nation might affect a
ruler's decision to become a protestant or a catholic is because he or
she would want to "become" the religion that is favored most in the
country, as to eliminate any political dissent by the people.
D is the answer the rest are reasons for causing world war 1
2343 ..........................................