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, or c without using any additional words.
Options:
a) N#CC(c1ccccc1)c1ccccc1
b) Oc1c(Br)cc(Cl)cc1Cc1cc(Cl)cc(Br)c1O
c) CCCCc1c(OC(=O)C23CC4CC(CC(C4)C2)C3)n(-c2ccccc2)n(-c2ccccc2)c1=O
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}