Question Statement:
Claim: 'Investing in zero-tillage seed drills will reduce tractor fuel consumption and soil erosion across the state.'
Which of the following, if true, most strongly WEAKENS the claim?
Options:
- (A) Zero-tillage drills require fewer tractor passes over the field
- (B) Fields with heavy standing crop residue clog zero-tillage furrow openers, forcing farmers to operate secondary tillage implements repeatedly
- (C) Zero-tillage preserves residual soil moisture during early germination
- (D) State subsidies currently cover $30\%$ of machine purchase cost