Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a O=C1c2cccc(S(=O)(=O)O)c2C(=O)c2cccc(S(=O)(=O)O)c21
b CC(C)N1CCCC1=O
c CCOP(=O)(OCC)SCCN(CC)CC
d CCCC1OC1(CC)CO
Answer: d
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}