caleb has poor eyesight from cataracts, a constant cough, and restricted blood flow in some blood vessels. Which drug does caleb most likely abuse? apex

B. Tobacco because tobacco causes lung damage thus the cough

The drug that Caleb most likely abuse of is letter c. tobacco. It is because smoking with tobacco causes respiratory issues or develop one once a person started using it. Base on the scenario, it can be seen that Caleb is having respiratory problems and by that, it can be pointed out that the tobacco is the reason behind it.

B. Tobacco because tobacco causes lung damage thus the cough

The drug is most likely going to be tobacco, it is well known that if you smoke one of the side effects is respiratory issues 

Explanation:Lascaux Cave is actually a complex of several caves in the town of Montignac, in the department of Dordogne in southwestern France. The cave has over 600 wall paintings on its walls and ceilings dating back to the Upper Paleolithic time, some 17,000 years ago. Opening the cave to the public in 1960’s has brought serious threats to the paintings. As part of the strict conservation program, authorities managed to install an air conditioning system in the cave to regulate humidity and temperature. Soon after that, a white mold called Fusarium solani infested and spread across the cave ceiling and walls at a rapid pace. Many other fungus infestations has followed over the years that threatened to destroy the priceless ancient paintings. Conservation process is still ongoing up to the time of writing and Lascaux Cave is not open to the public.