Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any other words.
Options:
a) O=NN1CN2CN(C1)CN(N=O)C2
b) CCOC(=O)c1c[n+](CC)c2n(c1=O)C(C)CCC2
c) O=c1oc2ccccc2c(O)c1C1CC(c2ccc(-c3ccccc3)cc2)Cc2ccccc21
Answer: a
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}