Question

Read the passage below carefully:

In recent years, West African cocoa farmers have increasingly adopted biochar—a carbon-rich substance produced through the pyrolysis of agricultural waste like cocoa pod husks—to combat severe soil degradation. Prolonged intensive cultivation and changing rainfall patterns have depleted essential soil nutrients and compromised water retention across major cocoa-growing belts. When incorporated into the topsoil, biochar acts as a stable sponge, retaining moisture during dry spells and enhancing the soil's capacity to store critical nutrients such as potassium and magnesium. Additionally, its porous structure fosters beneficial microbial activity, which accelerates organic matter decomposition. While some farmers supplement biochar application with organic composts made from poultry manure, and others utilize specialized kiln designs developed by local agricultural institutes, the fundamental mechanism of soil recovery lies in biochar's structural stability. Unlike uncharred organic matter, biochar resists rapid microbial decay, remaining intact in the soil matrix for decades. Consequently, its primary value is not merely providing temporary fertilizing nutrients, but permanently rebuilding the degraded physical and chemical architecture of cocoa farm soils, thereby securing long-term crop resilience.

Which of the following statements best captures the core thesis of the passage while excluding supporting details and illustrative examples?