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 additional words.
Options:
a CCOC(=O)CS
b CC(C)Oc1cc(-n2nc(C(C)(C)C)oc2=O)c(Cl)cc1Cl
c S=P(N1CC1)(N1CC1)N1CC1
d OC(CBr)C(O)C(O)C(O)CBr
e C#CCc1ccc(COC(=O)C2C(C=C(C)C)C2(C)C)o1
Answer: c
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}