Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a CCCCC(CC)COC(=O)c1ccccc1C(=O)OCC(CC)CCCC
b Cc1cccc([N+](=O)[O-])c1
c COc1cc(C#N)ccc1OP(=S)(OC)OC
d CC(=NO)C(=O)c1ccccc1
e CCOP(=S)(OCC)Oc1ccc([N+](=O)[O-])c(Cl)c1
Answer: d
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}