Statement: "The bridge was built at the cost of Rs. 128 crores and even civil bus service is not utilizing it, what a pity to see it grossly underutilized." - A citizen's view on a new flyover linking east and west sides of a suburb. Assumptions: The building of such bridges does not serve any public objective. There has to be some accountability and utility of money spent on public projects.

Given data

• Citizen: A Rs. 128-crore bridge is grossly underutilized (even the bus service doesn't use it) — a pity.
• Assumption I: Building such bridges never serves public objectives.
• Assumption II: There must be accountability and utility for public expenditure.

Concept/Approach
Identify the belief that must be true to judge underutilization as a 'pity' — a standard of utility/accountability for public spending — not a blanket condemnation of all bridges.

Step-by-step reasoning
I: The speaker criticizes this bridge's usage, not all bridges. A universal negative about bridges is not required.II: Calling underutilization a 'pity' presupposes public money should be used effectively and with accountability. Hence II is implicit.

Verification/Alternative
One can value bridges generally yet lament poor utilization; thus I need not hold.

Common pitfalls

• Overgeneralizing the critique to all infrastructure projects.

Final Answer
Only assumption II is implicit.