Question Statement:
Read the following passage and answer the question:
"Precision agriculture integrates global positioning systems, remote sensing, and variable-rate applicators to tailor inputs such as water, fertilizer, and agrochemicals to specific spatial zones within a field. By moving away from uniform field-scale applications, this methodology optimizes resource-use efficiency, lowers production costs, and curbs environmental pollution from agricultural runoff."
What is the primary theme of the passage?
Options:
- (A) The economic superiority of large machinery over small farm implements
- (B) The targeted, site-specific optimization of agricultural inputs through precision technology
- (C) The complete elimination of chemical fertilizers in modern sustainable farming
- (D) The history and development of satellite positioning systems