(a) Better wages
Factory workers aspire for better wages as their developmental goal, along with safe working conditions and fair treatment.
Source: Chapter 1, Table 1.1 — Developmental Goals of Different Categories of Persons
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The table in the textbook lists developmental goals of various categories. For workers (like landless rural labourers), better wages is a key aspiration. Options (c) and (d) — more hours/more labour — are hardships, not goals. Option (b) — better technology — is an industrialist's concern, not a worker's developmental goal.