Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) Nc1ccc(N=Nc2ccc(S(=O)(=O)O)cc2)cc1S(=O)(=O)O
b.) CC(=O)N(C)N=O
c.) O=NN(Cc1ccccc1)Cc1ccccc1
d.) O=C(O)CCC(=O)OC1CCCCC1
e.) CCCCCCC#COC(=O)OCC
Answer: a
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}