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) CC1Cc2c(Cl)cc(C(=O)NC(Cc3ccccc3)C(=O)O)c(O)c2C(=O)O1
(b) CC1(C)CC(NC2CC(C)(C)NC(C)(C)C2)CC(C)(C)N1
(c) CCOc1ccc(Cl)cc1C(CN1CCCCC1)C(C)CC
(d) Oc1c(Cl)c(Cl)cc(Cl)c1Cc1c(Cl)cc(Cl)c(Cl)c1O
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}