Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a: CC(C(=O)O)c1ccc2c(c1)[nH]c1ccc(Cl)cc12
b: NC1CC1
c: O=CN1CCOCC1
d: Cc1noc(NS(=O)(=O)c2ccc(N)cc2)c1C
e: Nc1ncnc2[nH]ncc12
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}