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) CCOc1ccc(-c2ccccc2)cc1CN1CCCC1
(b) Nc1ccc(Cc2ccc(N)c(Cl)c2)cc1Cl
(c) CCOC(=O)c1c[n+](CC)c2n(c1=O)C(C)CCC2
(d) O=C1c2ccccc2C(=O)c2c(Nc3ccc(Oc4ccc(S(=O)(=O)O)cc4)cc3)ccc(Nc3ccc(Oc4ccc(S(=O)(=O)O)cc4)cc3)c21
(e) CCNc1nc(Cl)nc(NC(C)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}