Verbal Aptitude

Claim: 'Laser land leveling directly reduces weed infestation in flooded rice fields.' Which biological or physical mechanism best supports this claim?

Options:

• (A) Uniform water ponding of 5 cm depth across the entire leveled field drowns emerging weed seedlings, whereas unlevel fields leave elevated dry spots where weeds thrive.
• (B) Laser leveling equipment requires trained operators.
• (C) Weeds compete with rice for nitrogen and sunlight.
• (D) Rice fields are flooded during transplanting.