Correct option is B
The most appropriate option to substitute the highlighted segment "conceptions of freedom" is concepts of liberty.
Concepts of liberty better fit the context of the Indian independence movement, which aimed to promote freedom and social welfare as foundational goals for the Indian state. "Liberty" refers to the state of being free within society from oppressive restrictions.
Explanation of other options:
- Procedures of free mind: This phrase is unclear and doesn’t suit the context of national independence.
- Symbols of victory: This refers more to visual or metaphorical representations of success, not freedom.
- Methods to sympathise: This is unrelated to the concepts of freedom or welfare.
Thus, "concepts of liberty" aligns well with the meaning of freedom in the historical context.