At a time, female Anopheles lays approximately (a) 40 - 100 eggs (b) 150 - 300 eggs (c) 100 - 200 eggs (d) 1000 eggs.

50-200eggs

Explanation:

After taking a blood meal, females find a protected resting site and wait until she can digest the blood and for her eggs to fully develop. When ready, she will lay her eggs on a water source and fly away to search out another blood meal. Females lay about 50 to 200 eggs at a time.

Unlike other mosquito species who lay eggs in groups that are “glued” together (egg rafts), Anopheles eggs are laid individually and float on surface of the water. Eggs may hatch within 2–3 days after being laid but can take up to three weeks in cooler climates.

the answer to your question is sperm

c should be the answer