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 additional words.
Options:
a) S=c1[nH]c2ccccc2[nH]1
b) O=S(=O)(F)C1CCC(S(=O)(=O)F)C1
c) O=C(Nc1ccc(O)cc1)c1ccccc1O
d) CC(C(=O)O)c1ccc2c(c1)OCc1ccccc1C2=O
e) CC(C)c1c(C(=O)c2cccnc2)c2ccccc2n1C
Answer: b
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}