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.) O=C1C(CCC2CC2)C(=O)N(c2ccccc2)N1c1ccccc1
b.) CCOC(=O)C=C(C)OP(=O)(OCC)OCC
c.) OC(CCl)CNCCNCC(O)CCl
d.) O=C(O)Cc1ccccc1Nc1c(Cl)cccc1Cl
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}