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 other words.
Options:
a Cc1c(Nc2ccccc2C(=O)O)ccc(O)c1Cl
b COCCSCCO
c Cc1nc2sccn2c1C=NNC(=O)CN(C)C
d CCCCCCCCP(=O)(CCCCCCCC)CCC(C)C
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}