Question Statement:
Argument: 'Field experiments show that wheat crops treated with mycorrhizal bio-fertilizers require 25% less phosphatic rock fertilizer to achieve identical grain yield. Therefore, chemical fertilizer industries will go bankrupt within three years.'
Which of the following flaws most severely undermines the conclusion?
Options:
- (A) It assumes that phosphatic fertilizers constitute the sole revenue stream of chemical fertilizer manufacturing units
- (B) It ignores the fact that phosphorus is an essential plant macronutrient
- (C) It overlooks that global wheat acreage accounts for all agricultural land on Earth
- (D) It assumes bio-fertilizers cannot be produced industrially