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, or c without using any additional words.
Options:
a Clc1cc(Cl)cc(C2(CC(Cl)(Cl)Cl)CO2)c1
b O=C=NCCOC(=O)C1CC=CCC1C(=O)OCCN=C=O
c CC(C)(O)CCCC1=CCC(C=O)CC1
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}