Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a CCOP(=S)(OCC)SCn1c(=O)oc2cc(Cl)ccc21
b Nc1ccc2cc(S(=O)(=O)O)ccc2c1CS(=O)(=O)O
c CC1(C(=O)O)CCC2(C)CCC3(C)C(=CC(=O)C4C5(C)CCC(OC(=O)CCC(=O)O)C(C)(C)C5CCC43C)C2C1
d COc1c(OP(=S)(OCC(C)C)OCC(C)C)cnn(C)c1=O
e Nc1ccc2c(S(=O)(=O)O)cccc2c1S(=O)(=O)O
Answer: c
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}