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) CNC(=O)Oc1cc(C)c(SC)c(C)c1
(b) CCOP(=O)(OCC)SCn1nc(Cl)c(C)cc1=O
(c) CON(C)C(=O)Nc1ccc(Br)cc1
(d) CC(=Cc1ccccc1)CC(=O)N(CCO)CCO
(e) Cc1ccc([N+](=O)[O-])c([N+](=O)[O-])c1
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}