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: COc1ccc(SC#N)c([N+](=O)[O-])c1
b: CC(C)C1CCC2CC(O)CCC2C1
c: CCCCOc1ccc(C(CN(C)C)C(C)CC)cc1Cl
d: COc1ccc(CC(N)C(=O)O)cc1C(=O)O
e: CCOC(C1=NCCCN1)c1ccc(Cl)cc1
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}