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, d, or e without using any other words.
Options:
a C=C(Cl)C(=O)OC
b CCCCN(CCCC)CCOc1ccnc(N)n1
c COC(=O)C[N+](=O)[O-]
d O=C(O)CCC1(CCC(=O)O)c2ccccc2-c2ccccc21
e CCOCCO
Answer: e
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}