Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a. CC1=NOC(=O)C1=NNc1ccccc1Cl
b. CCOC(C(=N)N1CCCC1)c1ccccc1
c. COc1ccc(-c2nc(C)c(C(N)=O)s2)cc1OC
d. FC(F)=C(F)CCSc1ncccn1
e. Cn1c([N+](=O)[O-])cnc1C=Cc1ccnc(N)n1
Answer: e
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}