This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
Study light is caused by 
Select and explain. 
A. Vinca alkaloids, B. Alkylation agents, C. Antimetabolite, D. Antinomycin D
B: Alkylation agents
Answer: B: Alkylation agents 
Explanation: Sterlite and secondary leukemias are distinguish adverse effects of alkylation agents