Mosquito breeding stages targeted by water removal

Steps:

• Mosquito life cycle includes egg, larva, pupa, and adult stages.
• Eggs are laid on water surfaces and hatch there.
• Larvae and pupae develop and live entirely in water.
• Adults emerge from pupae and leave the water, not requiring it for survival.

Why B is correct:

• Eggs, larvae, and pupae are the aquatic stages that depend on stagnant water for development, per mosquito biology.

Why the others are wrong:

• A includes adult, which lives independently of water after emergence.
• C includes adult and omits larva, a primary water-dependent stage.
• D omits egg and includes adult, ignoring the initial water-based stage.

Final answer: B