Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any other words.
Options:
a.) CN(C)C=C1C(=O)N(c2ccccc2)N=C1c1ccccc1
b.) COP(=S)(OC)Oc1ccc(Sc2ccc(OP(=S)(OC)OC)c(C)c2)cc1C
c.) CCCCOC(=O)CCCCC(=O)OCCCC
d.) c1ccc2c(c1)OCO2
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}