Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a. CCCn1cnc2c1c(=O)n(CCCCC(C)=O)c(=O)n2C
b. Cc1ccccc1-n1c(C)nc2ccccc2c1=O
c. CC(C(=O)O)c1ccc(-c2cn3ccccc3n2)cc1
d. ClN(Cl)c1nc(N(Cl)Cl)nc(N(Cl)Cl)n1
e. O=C(NC1CC1)OCC(O)C1COc2ccccc2O1
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}