I think the best answer is C or D. Don't take it from me though.
Answer:
I think b no is the correct ans
The meaning of ideology would be a set of beliefs or values of a group of people -A.
The reason why this would be an ideology is because when looking for a definition of ideology, this would be the one who comes closest. When we're talking about ideologies, we're usually talking about sets of beliefs people hold about specific topics. These can also expand and proliferate in differents topics as well and affect those.
A policy of extending a nation power by gaining political and economic control over other nation.