Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) CN(CCO)c1ccccc1
(b) CC(C)CCCCCc1ccc(O)cc1
(c) O=[N+]([O-])c1cc([N+](=O)[O-])c(O)c([N+](=O)[O-])c1
(d) CCP(=O)(OC)Oc1ccc([N+](=O)[O-])cc1
(e) CCC(C)c1ccc(O)cc1
Answer: e
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}