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 other words.
Options:
a: NC(CS)C(=O)O
b: CC(C)N(N=O)C(C)C
c: Cc1c(Cl)cc(-c2ccc(=O)[nH]n2)cc1Cl
d: CN(C)C(=O)NC1CC2CCC1(Cl)C2
e: c1ccc2[nH]c(-c3cscn3)nc2c1
Answer: b
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}