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 other words.
Options:
a.) O=c1oc2ccccc2c(O)c1C1CC(c2ccc(-c3ccccc3)cc2)Cc2ccccc21
b.) CCCC1OP(=S)(Cl)OCC1CC
c.) C(=Nc1ccccc1)Nc1ccccc1
d.) CCNc1nc(NCC)nc(OC)n1
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}