Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a CN(Sc1ccc([N+](=O)[O-])cc1)C(=O)Oc1cccc2c1OC(C)(C)C2
b O=C1c2ccccc2C(=O)N1SC1CCCCC1
c CCC(C)(C)C1(C(C)(C)CC)CO1
d CCOCCOCCOC
e CCCCC(CC)COC(=O)C1=C(C(=O)OCC(CC)CCCC)CCCC1
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}