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.) CCOP(=S)(CC)Sc1ccc(C)cc1
b.) Nc1cc2c(S(=O)(=O)O)cc(S(=O)(=O)O)cc2cc1S(=O)(=O)O
c.) OCc1cccc(Oc2ccccc2)c1
d.) CC(=O)ON(C(=O)OC(C)C)c1ccccc1
Answer: a
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}