Consider a production process with the production function q = f (x1, x2). If all inputs get doubled, and law of diminishing returns to scale is operative, then the output will be

Less than doubled

The correct answer is Option 2: Less than doubled

In this question, diminishing returns to scale means decreasing returns to scale. Decreasing Returns to Scale (DRS) holds when a proportional increase in all inputs results in an increase in output by a smaller proportion. So, if all inputs get doubled, and law of diminishing returns to scale is operative, then the output will be less than doubled.