Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a CCN(C(=O)c1cc(Cl)nc(Cl)c1)C1CC1
b CCC1(CC)C(=O)C=CN(CN2CCOCC2)C1=O
c FC(F)(C(Cl)(Cl)Cl)C(Cl)(Cl)Cl
d O=C1CCC(=O)N1
e CCCN=C(C(OCC)c1ccccc1)N1CCCCCC1
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}