Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any other words.
Options:
a.) CN(c1c(Br)cc(Br)cc1Br)c1c([N+](=O)[O-])cc([N+](=O)[O-])cc1C(F)(F)F
b.) CCN(CC)N=Nc1cccnc1
c.) COP(=S)(OC)SCSCCOC(N)=O
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}