Alternate approach — Function-first reasoning:
Instead of memorising the pairing directly, consider what each precision-agriculture activity technically requires. Harvest planning relies on GPS-guided routing to minimise field passes, so it pairs with route optimisation. Soil sampling generates georeferenced data points that must be lab-tested and interpreted, so it pairs with analysis. Boundary mapping depends on high-precision positioning to be usable for legal or management purposes, so it pairs with accuracy. Pest management increasingly uses sensors and drones that must follow the pest's spread, so it pairs with movement tracking.
Matching each activity to its defining technical requirement in this way reproduces the same pairing as List-I to List-II, confirming option (A)-(III), (B)-(II), (C)-(I), (D)-(IV).