Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a.) CN1CCN(CCC(=O)NN=Cc2ccc([N+](=O)[O-])o2)CC1
b.) O=C(NC(CCc1ccc2c(c1)OCO2)CCc1ccc2c(c1)OCO2)c1ccc(Cl)cc1
c.) CCNc1nc(NC(C)C)nc(SC)n1
d.) CN1CCN(CCC(=O)NN=Cc2ccc([N+](=O)[O-])o2)CC1
Answer: a, 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}