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, or c without using any additional words.
Options:
a) O=C(O)c1ccccc1Nc1c(Cl)cc(Cl)c2ccccc12
b) CCCCC(CC)COC(CBr)c1ccc(C2CCCCC2)cc1
c) Clc1ccc(C(Cn2ccnc2)OCc2ccsc2Cl)c(Cl)c1
Answer: c
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}