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) COP(=S)(OC)Oc1ccc(S(=O)(=O)N(C)C)cc1
(b) C=CCNC(=O)NS(=O)(=O)c1ccc(Cl)cc1
(c) COC(=O)C(C)Oc1ccc(Oc2ccc(Cl)cc2Cl)cc1
(d) FC(F)(F)c1nnc2c3ccccc3ccn12
(e) CCCCNC(=S)Nc1ccccc1
Answer: b
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}