Concept:
A sugarcane sett cutter is used to cut sugarcane into planting setts. Power operated sett cutters reduce labour requirement and increase capacity.
Step 1: Sugarcane planting requires properly cut setts.
Step 2: Manual cutting is slow and requires more labour.
Step 3: A power operated sugarcane sett cutter cuts setts quickly and uniformly.
Step 4: When the machine is operated by two persons, its capacity is generally:
\[
3200\text{ to }3500\ \text{setts/h}
\]
Step 5: Hence, the correct answer is:
\[
\boxed{3200\text{ to }3500\ \text{setts/h}}
\]