Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a: CC1(C)CON(Cc2ccccc2Cl)C1=O
b: CCCCOC(=O)C(Cl)(Cl)C(Cl)=C(Cl)Cl
c: CCOP(=O)(OCC)SC(Cl)=CCl
d: N=C1C=C(Br)C(=O)c2c(N)cc(Br)c(O)c21
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}