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] CC(=O)C1(O)CCC(c2ccccc2)CC1
[b] COP(=S)(OC)SC(C)CSCC1CC2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl
[c] O=c1oc2ccccc2c(O)c1C1CC(c2ccc(-c3ccc(Br)cc3)cc2)Cc2ccccc21
[d] OCC(O)C1OC2OC(C(Cl)(Cl)Cl)OC2C1O
[e] Cc1cncc(C)n1
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}