Which thesis statement best suits this paragraph from elliot banquer’s blog post?

the use of illegal drugs such as cocaine is a serious problem in the united states. recent studies have shown that substance abuse is among the leading risk factors for death. health care researchers and experts claim that, today, one in every four deaths results from illegal drug use. in addition to causing health problems, illegal drug use also leads to social problems, such as neglect, apathy, and paranoia. studies have also found that people who abuse drugs regularly are more likely to engage in violent and criminal behavior.
a. illegal drug use leads to multiple types of individual and social problems.
b. illegal drug use also affects nations that rely on producing these drugs for income.
c. illegal drug use is among the leading risk factors for death among adolescents.
d. illegal drug use harms the human body by attacking the nervous system.