Answer:
B.) Carbon dioxide is contributing to rising global temperatures.
Step-by-step explanation:
Rise in the global temperature is the result of global warming. Global warming is caused due to release the greenhouse gases. In the emitted greenhouse gases, percentage of carbon dioxide is the highest therefore, emission of carbon dioxide in high percentage causes global warming. The emissions of carbon dioxide have been increased within the last 50 years and are still increasing every year. Thus, carbon dioxide is contributing to rising global temperatures.