Fact 1: Plants respond to daily and seasonal cycles and to disease.

Fact 2: For flowering plants, the answer is the Flower.

Given the two facts above, answer the question "What do flowers respond to?" with the following options: 
- sunlight
 - The Sun
 - a chime
 - heat
 - Light
 - bees
 - disease
 - sun's heat


 

       disease  