Ecology

Step 1: Concept
Plants are categorized based on their light requirements.
Step 2: Meaning
The prefix "Helio-" refers to the sun.
Step 3: Analysis
Heliophytes are plants that are adapted to high-intensity light and thrive in sunny environments. In contrast, Sciophytes are shade-loving plants.
Step 4: Conclusion
Heliophytes are sun-loving plants.
Final Answer:(B)