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, d, or e without using any other words.
Options:
a CCCC1OP(=S)(Cl)OCC1CC
b CC1(C)Cc2cccc(OC(=O)NCSc3ccc(C(C)(C)C)cc3)c2O1
c CCCCC(CC)COC(CBr)c1cccc(C2CCCCC2)c1
d OCC(O)C1OC2OC(C(Cl)(Cl)Cl)OC2C1O
e CN1CCC23c4c5ccc(O)c4OC2C(O)C=CC3C1C5
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}