Final answer:
Cacti have adapted to a desert environment in various ways, but they do not have leaves to reduce water loss through transpiration. Hence the correct answer is option C
Step-by-step explanation:
The correct answer is c) cacti do not have leaves so they do not absorb as much sunlight.
Cacti have adapted to the desert environment in several ways. They contain large water storage, have spines to prevent animals from eating them, and have large root systems to absorb water.
However, cacti do not have leaves because leaves would increase water loss through transpiration. Instead, cacti perform photosynthesis in their stems and store water in their barrel-shaped stems.