Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a.) CCCc1ccccc1
b.) CCC(C)(C)c1ccc(O)cc1
c.) O=[N+]([O-])c1ccc(O)c(Cl)c1
d.) N#Cc1cc([N+](=O)[O-])ccc1Cl
e.) Cc1ccc(C(=O)c2ccc(CC(=O)O)n2C)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}