Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a: CCOC(=S)C=Cc1ccc(Cl)cc1
b: O=c1[nH]nc(-c2ccccc2)c2conc12
c: COP(=S)(OC)Oc1ccc(C#N)cc1C
d: CCCCCCCCCCCCOC(CBr)c1ccc(C(C)C)cc1
e: CCOP(=O)(OCC)OC(=C(Br)Br)c1ccc(Cl)cc1Cl
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}