Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, or d without using any additional words.
Options:
a.) CCCCC(CC)COC(=O)c1ccccc1C(=O)OCC(CC)CCCC
b.) CC(C)OP(=S)(OC(C)C)SCCNS(=O)(=O)c1ccccc1
c.) Cc1c(O)cccc1O
d.) CNC(=O)Oc1ccc(C)c(N(C)C)c1
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}