Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, or c without using any additional words.
Options:
a. N#Cc1sc2c(=O)c3ccccc3c(=O)c=2sc1C#N
b. CCOc1ccc(Cl)cc1C(CN1CCCCC1)C(C)CC
c. CC(=O)CCCCn1c(=O)c2c(ncn2C)n(C)c1=O
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}