Concept:
Pollination mechanisms differ based on the agent involved. Some require attraction and rewards (like nectar), while others depend on abiotic factors.
Step 1: Understand types of pollination.
• Anemophily → Pollination by wind (no attraction needed)
• Hydrophily → Pollination by water (no attraction needed)
• Zoophily → Pollination by animals (requires attraction and reward)
Step 2: Analyze chiropterophily.
Chiropterophily refers to pollination by bats. Since bats are animals, flowers must provide:
• Attraction (color, smell, large size)
• Reward (nectar)
Step 3: Analyze options.
• (A) Anemophily → Wind pollination, no reward $\times$
• (B) Epihydrophily → Surface water pollination $\times$
• (C) Hypohydrophily → Submerged water pollination $\times$
• (D) Chiropterophily → Animal pollination (bats), requires attraction and reward \checkmark
Step 4: Conclusion.
\[
\text{Attraction and reward are required in chiropterophily}
\]