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, or d without using any additional words.
Options:
a.) O=C(O)c1cc(-n2c(-c3ccccc3)cc3c2CCc2ccccc2-3)ccc1O
b.) Nc1ccncc1
c.) CCCCC1C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
d.) c1ccc(P(C2CCCCC2)C2CCCCC2)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}