Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a) O=C(NN1CCCC1)NS(=O)(=O)c1ccc(Cl)cc1
b) ClCc1c(Cl)cc(Cl)cc1Cl
c) CC(O)c1ccccc1
d) CNC(=O)ON=C1SC(C)C(=O)NC1(C)C
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}