Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a S=C1NCCC(COc2ccccc2)O1
b COC(=O)C1C2CC3c4[nH]c5cc(OC)ccc5c4CCN3CC2CC(O)C1OC
c CCP(=S)(OC)SCSCSP(=S)(CC)OC
d CC(O)C(C)(C)CO
e CC(C)(CCl)c1cc(Cl)nnc1Cl
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}