B.
Covert oppression is less noticeable and overt oppression is observable action.
The annexation of Texas, a slave state, raised a lot of tension because it ruined the balance of power between the North free states and the South slave states.
It’s means to have a harsh time or problems.
One thing England did that the colonist didn't like was making them fight for England in the the French and Indian war.After the war England then started taxing the colonies for England's debt.
Hope this answers your question
The reasons people move are usually for economic, political, cultural, or environmental reasons.