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: CCCCCc1cc(O)c2c(c1)OC(C)(C)C1CCC(C)=CC21
b: O=C(NC(O)C(Cl)(Cl)Cl)NC(O)C(Cl)(Cl)Cl
c: CCCCC1(COC(=O)CCC(=O)O)C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
d: CCCCn1c(C)cc(=NC(=O)c2ccccc2O)n1-c1ccccc1
e: C=CCOC(=O)OCCOCCOC(=O)OCC=C
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}