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, or d without using any other words.
Options:
(a) NC12CC3CC(CC(C3)C1)C2
(b) O=C1C(Cl)=C(Cl)C(=O)C1(Cl)Cl
(c) O=[N+]([O-])c1cc(Cl)c2nc(C(F)(F)F)[nH]c2c1
(d) CN1CCC(N(Cc2cccs2)c2ccccc2)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}