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. CCCCn1c(C)cc(=NC(=O)c2ccccc2O)n1-c1ccccc1
b. CCC(CC)COCCOCCCN1C(=O)C2C3C=CC(C3)C2C1=O
c. CCN1C(=NP(=O)(OC)SC)OCC1C
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}