Question: Read the description of the experiment below to answer the question. One hundred pea seeds were put in petri dishes and covered with wet paper towels. The petri dishes were then put inside black plastic bags. Half of them were placed in an incubator set to 10°C. The remaining half were placed in an incubator set to 30°C. This experiment was most likely designed to study the effect of which variable on the germination of pea seeds?

  Options: 
 A. temperature
 B. water
 C. light
 D. seed type 
Answer: A