Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (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) CCCC(=O)OCc1ccccc1
b) CC(C)=CCN(CC=C(C)C)CCC(C(N)=O)c1cccc2ccccc12
c) COP(=S)(OC)SC(SP(=S)(OC)OC)c1ccccc1
d) CC(C)Cc1cccc2c(CC(=O)O)cccc12
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}