Explanation
Correct answer: B.
Choice B is the best answer. The sentence places the Declaration of Independence in the context of Valle’s changing political beliefs, noting that Valle was long an opponent of Central American independence but changed his mind after an 1820 revolt and then wrote the Declaration of Independence in 1821.
Why the other choices are wrong
Choice A
Choice A is incorrect. The sentence states that Valle’s political beliefs changed after Riego’s revolt but doesn’t indicate how these changed beliefs provide context for the 1821 Declaration of Independence.
Choice C
Choice C is incorrect because it misrepresents information from the notes. Valle’s political beliefs changed after Riego’s 1820 revolt, not when the Spanish king repealed the 1812 constitution.
Choice D
Choice D is incorrect. While the sentence indicates a relationship between Colonel Riego’s 1820 revolt and Central America’s Declaration of Independence, it doesn’t mention Valle’s changing political beliefs.