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, or d without using any additional words.
Options:
(a) CC12CC1(C)C(=O)N(c1cc(Cl)cc(Cl)c1)C2=O
(b) Cc1ccc(SN(C)C(=O)Oc2cccc3c2OC(C)(C)C3)cc1
(c) CC1Oc2ccccc2CC1N(C)C
(d) CCCCOC(=O)N(C)SN(C)C(=O)Oc1cccc2c1OC(C)(C)C2
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}