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, or d without using any other words.
Options:
a: CC(C)(C)N(Cl)Cl
b: CCN1CCNCC1
c: CN(C)P(=O)(OP(=O)(N(C)C)N(C)C)N(C)C
d: CN1CCN(C(=O)NN=Cc2ccc([N+](=O)[O-])o2)CC1
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}