'Whom' is used as an object; 'who' is used as a subject. In 'Who did you meet?', 'who' is the object but 'who' is commonly accepted in modern English.

'Majority' is a collective noun treated as plural, so it should be 'have' not 'has'.

The critic's argument builds upon the documentary's findings by suggesting broader implications for democracy.

Option C maintains consistent grammatical structure with three nouns in a parallel list.

The paradox of high satisfaction coexisting with high stress demonstrates that fulfillment has multiple, complex dimensions.

This is a bandwagon fallacy—assuming something is good merely because many people support it.

The passage establishes the problem and its serious consequences, implying the need for solutions based on understanding this effect.

Option B uses correct mixed conditional structure with proper subjunctive form.

'Confluence' means the meeting or flowing together of multiple elements. Here it refers to how multiple factors converge to create change.

Hyperbole is extreme exaggeration. Comparing two hours to 'an eternity' is exaggerated for emphasis and effect.