Case Study: An honest and upright junior engineer in a municipal engineering wing discovers that substandard cement and compromised structural designs were used in a newly constructed flyover, approved by his predecessor and contracted to an influential political leader's family firm. The contractor threatens the engineer with severe personal and career consequences if he blows the whistle. The senior municipal commissioner advises him to ignore the issue to preserve departmental peace. (a) What are the options available to the engineer? (b) Evaluate each option and recommend the most ethical and legally sound course of action.