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, c, or d without using any additional words.
Options:
a.) CCCCC1C(=O)NN(c2ccccc2)C1=O
b.) CCOC(C1=NCCCN1)c1cccc2ccccc12
c.) CCC=C1OC(=O)c2ccccc21
d.) COP(=S)(OC)SC1CCSc2ccccc21
Answer: d
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}