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.) CC(=O)N(C)C(=O)Oc1cccc(C(C)(C)C)c1
b.) O=C1CCN(c2ccccc2)N1
c.) CC(Oc1ccc(Cl)cc1Cl)C(=O)O
d.) CCCCNS(=O)(=O)c1ccccc1
e.) O=C(O)Cc1cccc2ccccc12
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}