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, d, or e without using any other words.
Options:
a CCCC1CC(C(=O)NC(C(C)Cl)C2OC(SC)C(OP(=O)(O)O)C(O)C2O)N(C)C1
b CC(C)=CC1C(C(=O)OCN2C(=O)C3=C(CCCC3)C2=O)C1(C)C
c NC1=C(Cl)C(=O)c2ccccc2C1=O
d CN(C)CCCOc1nn(Cc2ccccc2)c2ccccc12
e CC1CC2Oc3ccc(Cl)cc3C(=O)N2O1
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}