Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a O=C(NC(=O)c1c(F)cccc1F)Nc1ccc(Cl)cc1
b O=C1OCCC1N(C(=O)C1CC1)c1cccc(Cl)c1
c CC1OC(OC2C=C3CCC4C(CCC5(C)C(c6ccc(=O)oc6)CCC45O)C3(C)CC2)C2OC(C)(C)OC2C1O
d CN(C)C(=O)NC1CCCCCCC1
e CC(C)CC(C)Nc1ccc(Nc2ccccc2)cc1
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}