Political vocabulary: supply the phrase for a serious point of disagreement Complete the sentence with the most appropriate expression: "One major ______ between the Election Commission and the Union Government related to the powers of the former regarding the deployment of central police forces at places where elections are held." Choose the option that best describes a contentious issue.

Given data

• Institutional disagreement over powers concerning deployment of central police forces.
• We need a set phrase for a specific contentious issue.

Concept/Approach
The idiomatic expression for a specific, persistent cause of disagreement is bone of contention. It precisely captures "one major point of dispute" between bodies.

Option analysis
bone of contention — correct idiom for a particular issue causing conflict. ✅difference — too mild and generic.dispute — a general quarrel; the sentence prefers a specific point of dispute.dissent — typically refers to disagreement in opinion within a body, less to a bilateral issue.

Language cleanup note
Corrected word order (for clarity): "… at places where elections are held."

Final Answer
bone of contention