For which action did theodore roosevelt win the 1906 nobel peace prize?

1.

Explanation:

The signing of the treaty settled immediate difficulties in the Far East and created three decades of peace between the two nations. ... Roosevelt was awarded the Nobel Peace Prize in 1906 for his back-channel efforts before and during the peace negotiations, even though he never actually went to Portsmouth.

1) the taiping rebellion was prompted from 1850-1864 and waged against the ruling of machu qing dynasty. the rebellion was caused by hong xiuquan and class differences, later leading to a radical change in social and economic structure.

3) karl marx, a believer of the principle of socialism, believed that the working class would have to free themselves from the exploitation of industrialists by establishing a radical socialist classless society where all industries and   property are owned by the state.

5) as indians revolt gained power, people found additional reasons to protest against the british rule. princely families joined the uprising due to changes to the inheritance law which made adopted children ineligible to assume the throne. this was an attempt by the british to control royal succession in the princely states that were nominally independent from the british.

b is the answer i am assuming