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, or d without using any other words.
Options:
a) Nc1cc(N2CCCCC2)nc(N)[n+]1[O-]
b) C=CCC(CCN(CC)CC)(C(=O)OCC)c1ccccc1
c) CN(C)C=Nc1c(I)cc(I)c(CCC(=O)O)c1I
d) CCCCCCc1ccccc1O
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}