Concept:Formulate linear constraints from given resource limits: total time used ≤ available time for each machine.Explanation:From the table:• Machine M1: Product A takes 3 hrs/unit, Product B takes 3 hrs/unit, available 36 hrs → 3x1+3x2≤36• Machine M2: 5x1+2x2≤50• Machine M3: 2x1+6x2≤60• Non‑negativity: x1≥0,x2≥0These match option C.Answer:Option C: 3x1+3x2≤36, 5x1+2x2≤50, 2x1+6x2≤60, x1≥0;x2≥0